411796

Appears in sequences

• The terms of A055258 (sums of two powers of 7) divided by 2.at n=30A073218
• a(n) = n^2*(n^5+1)/2.at n=7A168123
• G.f.: Sum_{n>=0} x^n * Product_{k=1..n} (1 + n*k*x) / (1 + x + n*k*x^2).at n=10A208236
• a(n) = (n^n + n^2)/2.at n=6A214647