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A249699 as a simple table

na(n)
00
11
20
31
40
51
60
71
80
91
100
111
120
13691
140
151
160
173617
180
1943867
200
21174611
220
2377683
240
25236364091
260
27657931
280
293392780147
300
311723168255201
320
337709321041217
340
35151628697551
360
3726315271553053477373
380
39154210205991661
400
41261082718496449122051
420

[0,1,0,1,0,1,0,1,0,1,0,1,0,691,0,1,0,3617,0,43867,
 0,174611,0,77683,0,236364091,0,657931,0,
 3392780147,0,1723168255201,0,7709321041217,0,
 151628697551,0,26315271553053477373,0,
 154210205991661,0,261082718496449122051,0]