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A047027 as a simple table

na(n)
01
13
29
328
495
5331
61169
74234
815533
957410
10214396
11806324
123046963
1311575473
1444163245
15169039223
16649096030
172499407973
189646255701
1937309138495
20144580572524
21561217993364
222181849519347
238494360042301
2433111979073980

[1,3,9,28,95,331,1169,4234,15533,57410,214396,
 806324,3046963,11575473,44163245,169039223,
 649096030,2499407973,9646255701,37309138495,
 144580572524,561217993364,2181849519347,
 8494360042301,33111979073980]