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 A216788 a(n) = Product_{k=1..n} (169 - 13/k). 0
 1, 156, 25350, 4174300, 691890225, 115130533440, 19207610662240, 3210414924974400, 537343198067590200, 90034838076214002400, 15098842345381088202480, 2533860269961226256525280, 425477370330989242241536600, 71480198215606192696578148800 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS This sequence is generalizable: Product_{k=1..n} (q^2 - q/k) = (q^n/n!) * Product_{k=0..n-1} (q*k + q-1) = expansion of (1- x*q^2)^((1-q)/q). LINKS MAPLE seq(product(169-13/k, k=1.. n), n=0..20); seq((13^n/n!)*product(13*k+12, k=0.. n-1), n=0..20); MATHEMATICA Table[Product[169-13/k, {k, n}], {n, 0, 20}] (* Harvey P. Dale, Mar 13 2013 *) CROSSREFS Cf. A004988, A049382, A004994, A216702, A216703, A216704, A216705, A216706, A216786, A216787. Sequence in context: A252778 A006112 A239410 * A239338 A028675 A248504 Adjacent sequences:  A216785 A216786 A216787 * A216789 A216790 A216791 KEYWORD nonn AUTHOR Michel Lagneau, Sep 16 2012 STATUS approved

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Last modified January 28 06:43 EST 2022. Contains 350654 sequences. (Running on oeis4.)