# A215560 (b-file synthesized from sequence entry)
0 3
1 3
2 101
3 444
4 5981
5 38468
6 390974
7 2948431
8 26868565
9 216624495
10 1888775906
11 15657923053
12 134074085330
13 1124375492334
14 9556192325235
15 80523923708399
16 682280993578341
17 5760499663646612
18 48746948619251921
19 411906111379078256
20 3483838470286469746
21 29447943482916260935