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Longer titles found: Squared triangular number (view), Square triangular number (view), Centered triangular number (view), Doubly triangular number (view)

searching for Triangular number 10 found (173 total)

alternate case: triangular number

360 (number) (875 words) [view diff] exact match in snippet view article

equals 360 degrees. 361 = 19 2 , {\displaystyle 361=19^{2},} centered triangular number, centered octagonal number, centered decagonal number, member of the

100 (1,274 words) [view diff] exact match in snippet view article find links to article

N. J. A. (ed.). "Sequence A000537 (Sum of first n cubes; or n-th triangular number squared)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation

147 (number) (542 words) [view diff] exact match in snippet view article

Retrieved 2023-12-29. Sloane, N. J. A. (ed.). "Sequence A000217 (Triangular number: a(n) is the binomial(n+1,2) equivalent to n*(n+1)/2 that is 0 + 1

Hypsicles (1,116 words) [view diff] exact match in snippet view article find links to article

when the common difference is 1, the sum of all the numbers is a triangular number; when 2 a square; when 3, a pentagonal number [and so on]. And the

9 (4,744 words) [view diff] exact match in snippet view article find links to article

N. J. A. (ed.). "Sequence A000537 (Sum of first n cubes; or n-th triangular number squared.)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation

Nicomachus (1,747 words) [view diff] exact match in snippet view article find links to article

Nicomachus's theorem states that a square whose side length is a triangular number can be partitioned into squares and half-squares whose areas add to

Gematria (6,043 words) [view diff] exact match in snippet view article find links to article

the order of letters. It is also sometimes called mispar meshulash (triangular number). Mispar mispari spells out the standard values of each letter by

Porism (1,486 words) [view diff] exact match in snippet view article find links to article

lines cut two and two into 1⁄2n(n − 1) points, 1⁄2n(n − 1) being a triangular number whose side is n − 1. If they are made to turn about the n fixed points

Bernoulli's triangle (512 words) [view diff] exact match in snippet view article find links to article

numbers. As the third column of Bernoulli's triangle (k = 2) is a triangular number plus one, it forms the lazy caterer's sequence for n cuts, where n

1023 (number) (560 words) [view diff] exact match in snippet view article

179487,63987,11880,1155,\mathbf {55} ,1)} that appears opposite a triangular number (successively in each row), in its case 55. It is equal to the sum