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A035272 One third of deca-factorial numbers. 4
1, 13, 299, 9867, 424281, 22486893, 1416674259, 103417220907, 8583629335281, 798277528181133, 82222585402656699, 9291152150500206987, 1142811714511525459401, 151993958030032886100333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..14.

Index entries for sequences related to factorial numbers

FORMULA

3*a(n) = (10*n-7)(!^10) := product(10*j-7, j=1..n); E.g.f. (-1+(1-10*x)^(-3/10))/3.

CROSSREFS

Cf. A045757.

Sequence in context: A165218 A317632 A076130 * A296319 A009119 A322734

Adjacent sequences:  A035269 A035270 A035271 * A035273 A035274 A035275

KEYWORD

easy,nonn

AUTHOR

Wolfdieter Lang

STATUS

approved

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Last modified November 11 22:31 EST 2019. Contains 329046 sequences. (Running on oeis4.)