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A144037 Shifts left when Euler transform applied 5 times. 1
0, 1, 1, 6, 26, 141, 751, 4337, 25512, 154839, 956877, 6014098, 38292603, 246550449, 1602304287, 10497348917, 69253008919, 459673679526, 3067621127220, 20570132531365, 138528107124822, 936524246563021, 6353624897677005 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

N. J. A. Sloane, Transforms

MAPLE

k:=5: with (numtheory): etr:= proc(p) local b; b:=proc(n) option remember; local d, j; if n=0 then 1 else add (add (d*p(d), d=divisors(j)) *b(n-j), j=1..n)/n fi end end: a:='a': b[1]:=etr(a): for t from 2 to k do b[t]:= etr(b[t-1]) od: a:= n-> `if`(n<2, n, b[k](n-1)): seq (a(n), n=0..30);

CROSSREFS

5th column of A144042.

Sequence in context: A046647 A046233 A140231 * A187458 A100308 A049040

Adjacent sequences:  A144034 A144035 A144036 * A144038 A144039 A144040

KEYWORD

eigen,nonn

AUTHOR

Alois P. Heinz (heinz(AT)hs-heilbronn.de), Sep 07 2008

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Last modified February 15 09:54 EST 2012. Contains 205763 sequences.