# A181888 (b-file synthesized from sequence entry)
1 0
2 0
3 9
4 64
5 259
6 784
7 1974
8 4368
9 8778
10 16368
11 28743
12 48048
13 77077
14 119392
15 179452
16 262752
17 375972
18 527136
19 725781
20 983136
21 1312311
22 1728496
23 2249170
24 2894320
25 3686670
26 4651920
27 5818995
28 7220304
29 8892009
30 10874304
31 13211704
32 15953344
33 19153288
34 22870848
35 27170913
36 32124288
37 37808043
38 44305872
39 51708462
40 60113872