A228114 - OEIS

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A228114 as a simple table

n	a(n)
1	-1
2	0
3	1
4	2
5	3
6	-34
7	-59
8	-9
9	176
10	1749
11	490
12	-842
13	4297
14	13427
15	-92418
16	-253834
17	925307
18	2903111
19	-27385699
20	28776158
21	81540379
22	40700461
23	-1160432518
24	2692289572
25	175794995

[-1,0,1,2,3,-34,-59,-9,176,1749,490,-842,4297, 13427,-92418,-253834,925307,2903111,-27385699, 28776158,81540379,40700461,-1160432518,2692289572, 175794995]