79218

Appears in sequences

• a(n) = a(n-1)+a(n-4).at n=34A014097
• Expansion of e.g.f. exp(3*x)/(1-3*x).at n=5A097814
• Number of 5 X 5 X 5 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n.at n=27A166213
• Numbers n such that the multiplicative group of integers modulo n is isomorphic to C_m X C_m, m > 1.at n=13A305236
• a(n) = Sum_{1<=i<=j<=n} prime(i)*prime(j).at n=15A357251