A236379 How much n increases when it is remultiplied from GF(2)[X] to Z: a(n) = A234742(n) - n.

0, 0, 0, 0, 0, 4, 0, 0, 0, 12, 8, 0, 0, 0, 0, 12, 0, 64, 24, 0, 16, 28, 0, 16, 0, 0, 0, 36, 0, 4, 24, 0, 0, 60, 128, 56, 48, 0, 0, 60, 32, 0, 56, 32, 0, 144, 32, 0, 0, 28, 0, 192, 0, 4, 72, 0, 0, 60, 8, 0, 48, 0, 0, 84, 0, 376, 120, 0, 256, 52, 112, 112, 96, 0, 0, 276, 0, 100, 120, 96, 64, 88, 0, 148, 112, 644, 64

Offset

0,6

Comments

All terms are divisible by 4.

Links

Antti Karttunen, Table of n, a(n) for n = 0..8191

Formula

a(n) = A234742(n) - n.

For all n, a(A091209(n)) > 0, and also a(A236844(n)) > 0 and a(A236835(n)) > 0.

Prog

(Scheme) (define (A236379 n) (- (A234742 n) n))

Crossrefs

A235035 gives the positions of zeros.

Cf. also A234742, A236378, A236380, A091209, A236835, A236844.

Sequence in context: A285132 A239261 A242707 * A126849 A284117 A183099

Adjacent sequences: A236376 A236377 A236378 * A236380 A236381 A236382

Keyword

nonn

Author

Antti Karttunen, Jan 24 2014

Status

approved