# A091983 (b-file synthesized from sequence entry)
0 1
1 20
2 180
3 560
4 1460
5 2520
6 5040
7 6880
8 11700
9 15140
10 22680
11 26640
12 40880
13 43960
14 61920
15 70560
16 93620
17 98280
18 136260
19 137200
20 183960
21 192640
22 239760
23 243360
24 327600
25 315020
26 395640
27 408800
28 502240
29 487800
30 635040
31 595840
32 748980
33 745920