# A107731 (b-file synthesized from sequence entry)
0 1
1 21
2 141
3 521
4 1401
5 3101
6 6021
7 10641
8 17521
9 27301
10 40701
11 58521
12 81641
13 111021
14 147701
15 192801
16 247521
17 313141
18 391021
19 482601
20 589401
21 713021
22 855141
23 1017521
24 1202001
25 1410501
26 1645021
27 1907641
28 2200521
29 2525901
30 2886101
31 3283521