A075728 Records in abs(sigma(n)-2*n) (absolute value of A033879).

1, 2, 4, 6, 10, 12, 16, 18, 22, 28, 30, 36, 40, 42, 46, 52, 58, 60, 66, 70, 72, 78, 82, 88, 96, 100, 102, 106, 108, 112, 120, 126, 130, 136, 138, 148, 150, 156, 162, 166, 172, 178, 186, 190, 192, 196, 198, 210, 222, 226, 228, 232, 238, 264, 268, 270, 276, 280, 282, 292, 306

Offset

1,2

Comments

RECORDS transform of |A033879|.

Links

R. J. Mathar and Donovan Johnson, Table of n, a(n) for n = 1..1000 (first 220 terms from R. J. Mathar)

N. J. A. Sloane, Transforms

Prog

(PARI) lista(nn) = {rec = -1; for (n=1, nn, d = abs(sigma(n) - 2*n); if (d > rec, print1(d, ", "); rec = d; ); ); } \\ Michel Marcus, Nov 02 2013

Crossrefs

Cf. A033879, A074918. Different from A006093.

Sequence in context: A085477 A128984 A249427 * A146886 A006093 A358816

Adjacent sequences: A075725 A075726 A075727 * A075729 A075730 A075731

Keyword

nonn

Author

N. J. A. Sloane, Oct 03 2002

Extensions

Corrected name, Michel Marcus, Nov 02 2013

Status

approved