A277024 a(n) = A277023(n) - n^2.

0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 0, 0, 3, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 3, 2, 2, 0, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 0, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0, 2, 3, 2, 2, 0, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 0

Offset

0,2

Links

Antti Karttunen, Table of n, a(n) for n = 0..750

Formula

a(n) = A277023(n) - n^2.

Prog

(Scheme) (define (A277024 n) (- (A277023 n) (A000290 n)))

Crossrefs

Cf. A000290, A277023.

Cf. A277015 (positions of zeros), A277025 (positions where 4n is zero), A277026 (where 4n is nonzero).

Sequence in context: A108352 A346149 A215883 * A317528 A246793 A335185

Adjacent sequences: A277021 A277022 A277023 * A277025 A277026 A277027

Keyword

nonn

Author

Antti Karttunen, Oct 03 2016

Status

approved