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A139761 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 1
5 5
6 15
7 35
8 70
9 127
10 220
11 385
12 715
13 1430
14 3004
15 6385
16 13380
17 27370
18 54740
19 107883
20 211585
21 416405
22 826045
23 1652090
24 3321891
25 6690150
26 13455325
27 26985675
28 53971350
29 107746282
30 214978335
31 429124630
32 857417220
33 1714834440
34 3431847189

[0,0,0,0,1,5,15,35,70,127,220,385,715,1430,3004,
 6385,13380,27370,54740,107883,211585,416405,
 826045,1652090,3321891,6690150,13455325,26985675,
 53971350,107746282,214978335,429124630,857417220,
 1714834440,3431847189]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)