94968

Appears in sequences

• a(n) = Sum_{k divides n} (n/k)^k.at n=34A055225
• a(n) = -Sum_{d|n} (-n/d)^d.at n=34A076717
• a(n) = Sum_{d|n} rad(d)^(n/d), where rad(d) = A007947(d) is the squarefree kernel of d.at n=34A095001
• Expansion of Sum_{k>=1} (-1)^(k+1)*k*x^k/(1 - k*x^k).at n=34A308366
• a(n) = Sum_{d|n, d odd} (n/d)^d.at n=34A333823
• a(n) = Sum_{d|n, n/d odd} (n/d)^d.at n=34A333824
• a(n) = Sum_{k=1..n} (-1)^(k-1) * binomial(floor(n/k)+3,4).at n=37A366659
• Expansion of e.g.f. (1/x) * Series_Reversion( x*(1 - 2*log(1+x)) ).at n=5A370940
• a(n) is the number of subsets x of Z_n such that #x * #y = n and x + y = Z_n for some subset y of Z_n.at n=34A374770
• a(n) is the numerator of the expected number of random moves of a chess king to reach a position outside an nXn chessboard, starting in one of the corners.at n=5A376609