179830

Appears in sequences

• First differences of triangular numbers with square pyramidal indices.at n=13A077538
• Number of distinct factorizations of 105*2^n.at n=23A093802
• G.f.: Sum_{n>=0} (n+1)*(n+2)*(n+3)/3! * x^n * (1 + x^n)^n.at n=58A326004
• a(n) is the smallest positive integer which can be represented as the sum of n distinct nonzero tetrahedral numbers in exactly n ways, or -1 if no such integer exists.at n=41A360217