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A271970 as a simple table

na(n)
11
20
31
40
51
63
73
85
98
1012
1120
1231
1348
1476
15119
16187
17294
18461
19724
201137
211785
222803
234401
246910
2510850
2617036
2726749
2842000
2965946
30103545
31162581
32255276
33400821
34629348
35988169
361551571
372436195
383825185
396006104
409430468
4114807224
4223249523
4336505176

[1,0,1,0,1,3,3,5,8,12,20,31,48,76,119,187,294,461,
 724,1137,1785,2803,4401,6910,10850,17036,26749,
 42000,65946,103545,162581,255276,400821,629348,
 988169,1551571,2436195,3825185,6006104,9430468,
 14807224,23249523,36505176]