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A270665 E.g.f.: Product_{k>=1} 1/(1 - tan(x^k)). 10
1, 1, 4, 20, 136, 1016, 10112, 102080, 1259648, 16501888, 243214592, 3792156928, 66314635264, 1201731751936, 23824296632320, 496708324364288, 11065302289285120, 257749924759273472, 6397599337673523200, 165009476729535463424, 4496775223731602063360 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
MATHEMATICA
nmax = 25; Range[0, nmax]! * CoefficientList[Series[Product[1/(1-Tan[x^k]), {k, 1, nmax}], {x, 0, nmax}], x]
CROSSREFS
Sequence in context: A360660 A143463 A290444 * A330538 A141716 A129102
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, Mar 21 2016
STATUS
approved

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Last modified March 28 11:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)