a(n) is the smallest positive integer such that a(n)*(1^n + 2^n + ... + x^n) is a polynomial in x with integer coefficients.

A064538

a(n) is the smallest positive integer such that a(n)*(1^n + 2^n + ... + x^n) is a polynomial in x with integer coefficients.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =4a(4) =30a(5) =12a(6) =42a(7) =24a(8) =90a(9) =20a(10) =66a(11) =24a(12) =2730a(13) =420a(14) =90a(15) =48a(16) =510a(17) =180a(18) =3990a(19) =840a(20) =6930a(21) =660a(22) =690a(23) =720a(24) =13650a(25) =1092a(26) =378a(27) =56a(28) =870a(29) =60

External references