# A019244 (b-file synthesized from sequence entry)
3 0
4 0
5 4
6 6
7 4
8 14
9 58
10 92
11 210
12 634
13 1502
14 3394
15 9168
16 23090
17 57376
18 148201
19 387626
20 999878
21 2611796
22 6901985
23 18213420
24 48189019
25 128283468
26 342172298
27 913765356
28 2447082537
29 6567061364
30 17646783586
31 47498319984