# A026876 (b-file synthesized from sequence entry)
0 1
1 3
2 11
3 43
4 174
5 721
6 3042
7 13022
8 56420
9 246977
10 1090846
11 4856162
12 21770665
13 98217318
14 445634370
15 2032434475
16 9313305870
17 42861416044
18 198038717055
19 918368326483
20 4273103732070
21 19944292913477
22 93356009312511
23 438150836819153