# A214884 (b-file synthesized from sequence entry)
0 0
1 -2
2 1
3 -9
4 15
5 -50
6 118
7 -324
8 831
9 -2195
10 5725
11 -15012
12 39276
13 -102854
14 269245
15 -704925
16 1845483
17 -4831574
18 12649186
19 -33116040
20 86698875
21 -226980647
22 594243001
23 -1555748424
24 4073002200
25 -10663258250
26 27916772473
27 -73087059249
28 191344405191