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A366081 as a simple table

na(n)
01
11
21
30
4-5
5-22
6-68
7-165
8-285
9-96
101892
1110574
1238436
13107175
14217063
15165232
16-1150565
17-7780744
18-31173680
19-94537100
20-212903852
21-239418048
22788015576
236734057510
2429396759220
2595418332383
26233697161887
27334222633632
28-514863450175
29-6299672869750

[1,1,1,0,-5,-22,-68,-165,-285,-96,1892,10574,
 38436,107175,217063,165232,-1150565,-7780744,
 -31173680,-94537100,-212903852,-239418048,
 788015576,6734057510,29396759220,95418332383,
 233697161887,334222633632,-514863450175,
 -6299672869750]