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A322365 Denominator of the sum of inverse products of parts in all partitions of n. 8
1, 1, 2, 6, 3, 10, 180, 1260, 560, 15120, 151200, 26400, 4989600, 4633200, 1528800, 851350500, 54486432000, 34306272000, 793945152000, 105594705216000, 1396755360000, 77534573760000, 243923769048960000, 23087434930560000, 67322960257512960000, 4371620795942400000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..506

MAPLE

b:= proc(n, i) option remember; `if`(n=0 or i=1, 1,

      b(n, i-1) +b(n-i, min(i, n-i))/i)

    end:

a:= n-> denom(b(n$2)):

seq(a(n), n=0..30);

CROSSREFS

See A322364 for more information.

Sequence in context: A130684 A295644 A079178 * A297553 A317490 A256466

Adjacent sequences:  A322362 A322363 A322364 * A322366 A322367 A322368

KEYWORD

nonn,frac

AUTHOR

Alois P. Heinz, Dec 04 2018

STATUS

approved

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Last modified April 20 16:17 EDT 2019. Contains 322310 sequences. (Running on oeis4.)