# A296048 (b-file synthesized from sequence entry)
0 1
1 -2
2 2
3 -4
4 32
5 -128
6 496
7 -2336
8 29312
9 -395776
10 3194624
11 -21951488
12 277270528
13 -4027191296
14 38850203648
15 -739834458112
16 19460560584704
17 -299971773661184
18 3169121209090048
19 -51853341314514944
20 1234704403684130816
21 -30653318499154788352
22 658369600764729884672
23 -10809496145754051313664