# A375381 (b-file synthesized from sequence entry)
0 1
1 1
2 1
3 4
4 7
5 46
6 121
7 1114
8 3907
9 46246
10 202741
11 2933074
12 15430207
13 263817646
14 1619195761
15 31943268634
16 224061282907
17 5009616448246
18 39531606447181
19 987840438629794
20 8661323866026007
21 239217148602642046
22 2307185279184885001
23 69790939492563608554