login
A028048
Expansion of 1/((1-3x)(1-4x)(1-9x)(1-11x)).
0
1, 27, 478, 7062, 94699, 1198209, 14603176, 173499804, 2024524117, 23314991271, 265875954994, 3009351209826, 33865370166655, 379381897212813, 4234967357150332, 47140543570858728, 523549120110020713
OFFSET
0,2
FORMULA
a(n)=(15*11^(n+3)-28*9^(n+3)+48*4^(n+3)-35*3^(n+3))/1680. [Yahia Kahloune, Jun 07 2013]
MATHEMATICA
CoefficientList[Series[1/((1-3x)(1-4x)(1-9x)(1-11x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{27, -251, 933, -1188}, {1, 27, 478, 7062}, 20] (* Harvey P. Dale, Mar 24 2018 *)
CROSSREFS
Sequence in context: A026795 A028114 A026727 * A028063 A024441 A026028
KEYWORD
nonn
AUTHOR
STATUS
approved