A151923 a(n) = A079316(2n+1).

3, 7, 11, 21, 25, 35, 45, 73, 77, 87, 97, 125, 135, 163, 191, 273, 277, 287, 297, 325, 335, 363, 391, 473, 483, 511, 539, 621, 649, 731, 813, 1057, 1061, 1071, 1081, 1109, 1119, 1147, 1175, 1257, 1267, 1295, 1323, 1405, 1433, 1515, 1597, 1841, 1851, 1879, 1907

Offset

0,1

Links

Paolo Xausa, Table of n, a(n) for n = 0..10000

Formula

First differences give A151712.

Mathematica

A151923list[nmax_]:=Accumulate[3^DigitCount[Range[0, nmax], 2, 1]+1]+1; A151923list[100] (* Paolo Xausa, Jul 28 2023 *)

Crossrefs

Cf. A079316, A151712.

Sequence in context: A130972 A350400 A344483 * A187264 A067498 A018345

Adjacent sequences: A151920 A151921 A151922 * A151924 A151925 A151926

Keyword

nonn,easy

Author

N. J. A. Sloane, Aug 05 2009

Extensions

More terms from Paolo Xausa, Jul 28 2023

Status

approved