A256483 a(n) = A256482(n)/2 = (A254100(n) - A003309(n+1)) / 2.

1, 3, 7, 12, 22, 30, 42, 61, 71, 88, 108, 126, 137, 154, 180, 206, 227, 249, 273, 297, 324, 336, 368, 405, 434, 454, 465, 497, 520, 565, 594, 627, 655, 699, 722, 742, 750, 807, 874, 890, 933, 945, 972, 1006, 1020, 1048, 1077, 1120, 1164, 1218, 1244, 1272, 1338, 1370, 1400, 1474, 1488, 1517, 1545, 1605, 1627

Offset: 1

Author

Antti Karttunen, May 01 2015

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..4096

Crossrefs

Column 1 of A257258.

Cf. A003309, A254100, A256482.

Cf. also A256486, A256487.

Programs

Scheme

(define (A256483 n) (/ (A256482 n) 2))

Formula

a(n) = A256482(n)/2 = (A254100(n) - A003309(n+1)) / 2.