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URL: https://oeis.org/A011844

⇱ A011844 - OEIS

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A011844
a(n) = floor(binomial(n,7)/8).
2
0, 0, 0, 0, 0, 0, 0, 0, 1, 4, 15, 41, 99, 214, 429, 804, 1430, 2431, 3978, 6298, 9690, 14535, 21318, 30644, 43263, 60087, 82225, 111003, 148005, 195097, 254475, 328696, 420732, 534006, 672452, 840565, 1043460, 1286934, 1577532, 1922617, 2330445, 2810242, 3372291
OFFSET
0,10
LINKS
Index entries for linear recurrences with constant coefficients, signature (7, -21, 35, -35, 21, -7, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -7, 21, -35, 35, -21, 7, -1).
FORMULA
a(n) = floor(binomial(n+1,8)/(n+1)). - Gary Detlefs, Nov 23 2011
MATHEMATICA
Floor[Binomial[Range[0, 40], 7]/8] (* Harvey P. Dale, Apr 23 2011 *)
CROSSREFS
A column of triangle A011847.
Sequence in context: A093920 A389183 A342352 * A075468 A100503 A085829
KEYWORD
nonn,easy
EXTENSIONS
More terms from Andrew Howroyd, Oct 22 2025
STATUS
approved