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A021834 Expansion of 1/((1-x)*(1-4*x)*(1-6*x)*(1-11*x)). 1
1, 22, 329, 4226, 50469, 580422, 6541681, 72922570, 808020125, 8923802030, 98376704361, 1083438632562, 11925616635349, 131228622530326, 1443796242996449, 15883448475593882, 174728077773953421 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = (3*11^(n+3) - 21*6^(n+3) + 25*4^(n+3) - 7)/1050. [Yahia Kahloune, Jul 05 2013]
MATHEMATICA
CoefficientList[Series[1 / ((1 - x) (1 - 4 x) (1 - 6 x) (1 - 11 x)), {x, 0, 20}], x] (* Vincenzo Librandi, Jul 11 2013 *)
CROSSREFS
Sequence in context: A230965 A019958 A021644 * A019671 A021614 A258006
KEYWORD
nonn,easy
AUTHOR
STATUS
approved

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Last modified July 15 00:37 EDT 2024. Contains 374323 sequences. (Running on oeis4.)