Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=7.

A068024

Z(S_m; sigma[1](n), sigma[2](n),..., sigma[m](n)) where Z(S_m; x_1,x_2,...,x_m) is the cycle index of the symmetric group S_m and sigma[k](n) is the sum of k-th powers of divisors of n; m=7.

Terms

    a(0) =1a(1) =255a(2) =3280a(3) =43435a(4) =97656a(5) =998184a(6) =960800a(7) =6347715a(8) =8069620a(9) =27615060a(10) =21435888a(11) =184770040a(12) =67977560a(13) =263540112a(14) =343123440a(15) =866251507a(16) =435984840a(17) =2595218340a(18) =943531280a(19) =4944199260a(20) =3308659904a(21) =5722701624a(22) =3559590240

External references