A281908 a(n) = (Sum_{k=1..n} C(n,k) mod k) mod n.

0, 1, 2, 2, 3, 2, 2, 3, 6, 3, 3, 2, 1, 0, 2, 14, 13, 13, 12, 8, 18, 16, 14, 20, 2, 23, 24, 21, 19, 22, 19, 15, 21, 2, 25, 6, 1, 26, 25, 38, 33, 4, 42, 19, 34, 19, 14, 38, 31, 18, 22, 20, 14, 42, 29, 13, 9, 44, 38, 39, 31, 9, 4, 9, 25, 7, 63, 22, 2, 17, 7, 38, 27, 44, 25

Offset

1,3

Links

Michel Marcus, Table of n, a(n) for n = 1..1000

Formula

a(n) = A076541(n) mod n.

Prog

(PARI) a(n) = sum(k=1, n, binomial(n, k) % k) % n;

Crossrefs

Cf. A076541, A081371, A280559.

Sequence in context: A362972 A138143 A285727 * A106441 A131836 A133829

Adjacent sequences: A281905 A281906 A281907 * A281909 A281910 A281911

Keyword

nonn

Author

Michel Marcus, Feb 01 2017

Status

approved