A062957 a(n) = C(n^2) - C(n), where C(n) is Chowla's function (A048050).

0, 2, 3, 12, 5, 49, 7, 56, 36, 109, 11, 243, 13, 193, 169, 240, 17, 502, 19, 539, 289, 433, 23, 1039, 150, 589, 351, 955, 29, 1879, 31, 992, 625, 973, 529, 2400, 37, 1201, 841, 2287, 41, 3369, 43, 2147, 1693, 1729, 47, 4263, 392, 2924, 1369, 2923, 53, 4669

Offset

1,2

Links

Table of n, a(n) for n=1..54.

Prog

(PARI) C(n)=sigma(n)-n-1; j=[]; for(n=1, 150, j=concat(j, C(n^2)-C(n))); j

Crossrefs

Cf. A048050.

Sequence in context: A237873 A069220 A301276 * A288129 A288058 A281850

Adjacent sequences: A062954 A062955 A062956 * A062958 A062959 A062960

Keyword

easy,nonn,changed

Author

Jason Earls, Jul 22 2001

Status

approved