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A127632 as a simple table

n a(n)
0 1
1 1
2 3
3 11
4 44
5 185
6 804
7 3579
8 16229
9 74690
10 347984
11 1638169
12 7780876
13 37245028
14 179503340
15 870374211
16 4243141332
17 20786340271
18 102275718924
19 505235129250
20 2504876652190
21 12459922302900
22 62167152967680
23 311040862133625

[1,1,3,11,44,185,804,3579,16229,74690,347984,
 1638169,7780876,37245028,179503340,870374211,
 4243141332,20786340271,102275718924,505235129250,
 2504876652190,12459922302900,62167152967680,
 311040862133625]

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Last modified May 26 05:17 EDT 2018. Contains 304593 sequences. (Running on oeis4.)