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A171378 a(n) = (n+1)^2 - A006046(n). 1
0, 1, 4, 7, 14, 21, 30, 37, 52, 67, 84, 99, 120, 139, 160, 175, 206, 237, 270, 301, 338, 373, 410, 441, 486, 529, 574, 613, 662, 705, 750, 781, 844, 907, 972, 1035, 1104, 1171, 1240, 1303, 1380, 1455, 1532, 1603, 1684, 1759, 1836, 1899, 1992, 2083, 2176, 2263 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Robert Price, Table of n, a(n) for n = 0..999

MATHEMATICA

Table[(n+1)^2 -Sum[Sum[Mod[Binomial[m, k], 2], {k, 0, m}], {m, 0, n}], {n, 0, 60}]

PROG

(PARI) {a(n) = (n+1)^2 - sum(m=0, n, sum(k=0, m, binomial(m, k)%2))};

for(n=0, 60, print1(a(n), ", ")) \\ G. C. Greubel, Apr 11 2019

(MAGMA) [(n+1)^2 - (&+[ (&+[ Binomial(m, k) mod 2: k in [0..m]]): m in [0..n]]): n in [0..60]]; // G. C. Greubel, Apr 11 2019

(Sage) [(n+1)^2 - sum(sum(binomial(m, k)%2 for k in (0..m)) for m in (0..n)) for n in (0..60)] # G. C. Greubel, Apr 11 2019

CROSSREFS

Cf. A006046, A001316.

Sequence in context: A115759 A157615 A188319 * A147478 A147372 A201272

Adjacent sequences:  A171375 A171376 A171377 * A171379 A171380 A171381

KEYWORD

nonn

AUTHOR

Roger L. Bagula, Dec 07 2009

EXTENSIONS

Edited by G. C. Greubel, Apr 11 2019

STATUS

approved

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Last modified September 23 04:57 EDT 2019. Contains 327327 sequences. (Running on oeis4.)