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A135962 as a simple table

n a(n)
0 1
1 1
2 3
3 4
4 15
5 56
6 84
7 330
8 495
9 2002
10 8008
11 12376
12 50388
13 203490
14 319770
15 1307504
16 2042975
17 8436285
18 34597290
19 54627300
20 225792840
21 354817320
22 1476337800
23 6107086800
24 9669554100
25 40225345056
26 166509721602
27 265182149218

[1,1,3,4,15,56,84,330,495,2002,8008,12376,50388,
 203490,319770,1307504,2042975,8436285,34597290,
 54627300,225792840,354817320,1476337800,
 6107086800,9669554100,40225345056,166509721602,
 265182149218]

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Last modified September 24 01:21 EDT 2020. Contains 337315 sequences. (Running on oeis4.)