123180

Appears in sequences

• Row sums of triangle A091700.at n=8A091701
• G.f.: A(x) = 1 + x*B(x), where B(x) = 1 + x^2*C(x)^2, C(x) = 1 + x^3*D(x)^3, D(x) = 1 + x^4*E(x)^4, ...at n=41A228866
• Numbers k such that Bernoulli number B_{k} has denominator 56786730.at n=27A295598
• a(n) is the smallest positive integer which can be represented as the sum of distinct nonzero n-gonal pyramidal numbers in exactly n ways, or 0 if no such integer exists.at n=35A350210