# A133331 (b-file synthesized from sequence entry)
0 0
1 1
2 3
3 6
4 9
5 15
6 18
7 27
8 27
9 36
10 27
11 27
12 0
13 -27
14 -81
15 -162
16 -243
17 -405
18 -486
19 -729
20 -729
21 -972
22 -729
23 -729
24 0
25 729
26 2187
27 4374