36780

Appears in sequences

• Sum of squares of tetranacci numbers (A001630).at n=10A107242
• Number of ways to arrange integers 1...n so that the sum of each adjacent pair is a triangular number, not counting reversals.at n=24A116980
• Number of right triangles on a (n+1)X9 grid.at n=15A189813
• Sum of the largest parts in the partitions of 3n into 3 parts.at n=29A236370
• Integers n such that 6 * 7^n + 1 is prime.at n=10A245241
• Number of set partitions of [n] into exactly seven blocks such that all odd elements are in blocks with an odd index and all even elements are in blocks with an even index.at n=7A274871
• Number of set partitions of [2n] into exactly n blocks such that all odd elements are in blocks with an odd index and all even elements are in blocks with an even index.at n=7A274875
• G.f.: Product_{m>0} (1 + x^m + 2!*x^(2*m) + 3!*x^(3*m) + 4!*x^(4*m) + 5!*x^(5*m)).at n=18A293250
• Irregular table read by rows: Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join an infinite straight line between every pair of points: T(n,k) is the number of k-sided finite polygons formed, for k>=3, in the resulting graph.at n=42A386562
• Expansion of the series e(-q), where the series e(q) is Morier-Genoud and Ovsienko's q-analog of Euler's number e.at n=35A392020