# A150307 (b-file synthesized from sequence entry)
0 1
1 2
2 7
3 21
4 83
5 287
6 1220
7 4555
8 20190
9 78993
10 359409
11 1451062
12 6720199
13 27751565
14 130164832
15 546754411
16 2588819975
17 11019871896
18 52557679338
19 226126679991
20 1084651213681
21 4707823016596
22 22685539977351
23 99191227846860
24 479765440775025
25 2110911015785133
26 10241763997702972
27 45306172200689549