A180107 Partial sums of terms in A180101.

0, 1, 1, 2, 4, 6, 9, 12, 15, 20, 25, 30, 35, 42, 49, 56, 63, 70, 77, 88, 99, 110, 121, 132, 143, 156, 169, 182, 195, 208, 221, 238, 255, 272, 289, 306, 323, 342, 361, 380, 399, 418, 437, 460, 483, 506, 529, 552, 575, 598, 621, 644, 667, 696, 725, 754, 783, 812, 841, 870, 899, 930, 961, 992, 1023, 1054, 1085, 1116, 1147, 1184, 1221, 1258, 1295, 1332, 1369, 1406, 1443, 1480, 1517, 1558, 1599, 1640

Offset

0,4

Comments

Apart from initial terms, same as A036441 and A076271, but the simple definition warrants an independent entry.

Links

T. D. Noe, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A180101, A036441, A076271.

Sequence in context: A145802 A076271 A036441 * A375983 A135146 A256956

Adjacent sequences: A180104 A180105 A180106 * A180108 A180109 A180110

Keyword

nonn

Author

N. J. A. Sloane, Jan 16 2011

Status

approved