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41 - 50 of 13135 for Triangular NumberSearch Results
View search results from all Wolfram sites (50106 matches)Johnson solid J_(92).
Johnson solid J_(18).
Johnson solid J_7.
Johnson solid J_(44).
Johnson solid J_(50).
Johnson solid J_(14).
Johnson solid J_(22).
Given a triangle with angles (pi/p, pi/q, pi/r), the resulting symmetry group is called a (p,q,r) triangle group (also known as a spherical tessellation). In three ...
A polygonal number of the form O_n=n(3n-2). The first few are 1, 8, 21, 40, 65, 96, 133, 176, ... (OEIS A000567). The generating function for the octagonal numbers is ...
A number which can be specified implicitly or explicitly by exponential, logarithmic, and algebraic operations.
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