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A157156 as a simple table

na(n)
01
11
21
31
47
51
61
743
843
91
101
11259
12806
13259
141
151
161555
1711720
1811720
191555
201
211
229331
23151215
24338770
25151215
269331
271
281
2955987
301828221
317892635
327892635
331828221
3455987
351
361
37335923
3821286168
39162474781
40304389070
41162474781
4221286168
43335923
441

[1,1,1,1,7,1,1,43,43,1,1,259,806,259,1,1,1555,
 11720,11720,1555,1,1,9331,151215,338770,151215,
 9331,1,1,55987,1828221,7892635,7892635,1828221,
 55987,1,1,335923,21286168,162474781,304389070,
 162474781,21286168,335923,1]