# A028069 (b-file synthesized from sequence entry)
0 1
1 28
2 510
3 7700
4 104951
5 1344168
6 16531180
7 197743000
8 2319239901
9 26813094308
10 306681461450
11 3479254697100
12 39224238812851
13 440041610610448
14 4917647821351320
15 54788913249014000
16 608931512071655801