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 A035273 One quarter of deca-factorial numbers. 0
 1, 14, 336, 11424, 502656, 27143424, 1737179136, 128551256064, 10798305509376, 1015040717881344, 105564234659659776, 12034322751201214464, 1492256021148950593536, 199962306833959379533824 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n)= (Pochhammer(4/10,n)*10^n)/4. LINKS FORMULA 4*a(n) = (10*n-6)(!^10) := product(10*j-6, j=1..n)= 2^(n+1)*A034323(n), 2*A034323(n)= (5*n-3)(!^5) := product(5*j-3, j=1..n); E.g.f. (-1+(1-10*x)^(-2/5))/4. CROSSREFS Cf. A034323, A045757. Sequence in context: A090598 A060075 A222984 * A020143 A161927 A113673 Adjacent sequences:  A035270 A035271 A035272 * A035274 A035275 A035276 KEYWORD easy,nonn AUTHOR STATUS approved

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