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A130637 as a simple table

na(n)
00
11
20
33
40
515
61
7105
811
9945
10125
1110396
121605
13135159
1423415
152027510
16385036
1734469275
187065807
19654939640
20143343650
2113754117476
223188029575
23316351767755
2477167649440
257908937537525
262020113002916
27213544501542750
2856879515849403
296192867712389190

[0,1,0,3,0,15,1,105,11,945,125,10396,1605,135159,
 23415,2027510,385036,34469275,7065807,654939640,
 143343650,13754117476,3188029575,316351767755,
 77167649440,7908937537525,2020113002916,
 213544501542750,56879515849403,6192867712389190]