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A178963 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 3
5 9
6 19
7 99
8 477
9 1513
10 11259
11 74601
12 315523
13 3052323
14 25740261
15 136085041
16 1620265923
17 16591655817
18 105261234643
19 1488257158851
20 17929265150637
21 132705221399353
22 2172534146099019
23 30098784753112329
24 254604707462013571
25 4736552519729393091
26 74180579084559895221
27 705927677520644167681
28 14708695606607601165843
29 256937013876000351610089
30 2716778010767155313771539

[1,1,1,1,3,9,19,99,477,1513,11259,74601,315523,
 3052323,25740261,136085041,1620265923,16591655817,
 105261234643,1488257158851,17929265150637,
 132705221399353,2172534146099019,
 30098784753112329,254604707462013571,
 4736552519729393091,74180579084559895221,
 705927677520644167681,14708695606607601165843,
 256937013876000351610089,
 2716778010767155313771539]

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)