|
Search: id:A144037
|
|
|
| A144037 |
|
Shifts left when Euler transform applied 5 times. |
|
+0
2
|
|
| 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; listen)
|
|
|
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 this_sequence A100308 A049040 A103649
Adjacent sequences: A144034 A144035 A144036 this_sequence A144038 A144039 A144040
|
|
KEYWORD
|
eigen,nonn
|
|
AUTHOR
|
Alois P. Heinz (heinz(AT)hs-heilbronn.de), Sep 07 2008
|
|
|
Search completed in 0.002 seconds
|
