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A312981 as a simple table

na(n)
01
14
29
313
420
522
628
731
835
944
1044
1152
1253
1357
1468
1566
1676
1775
1879
1992
2088
21100
2297
23101
24116
25110
26124
27119
28123
29140
30132
31148
32141
33145
34164
35154
36172
37163
38167
39188
40176
41196
42185
43189
44212
45198
46220
47207
48211
49236

[1,4,9,13,20,22,28,31,35,44,44,52,53,57,68,66,76,
 75,79,92,88,100,97,101,116,110,124,119,123,140,
 132,148,141,145,164,154,172,163,167,188,176,196,
 185,189,212,198,220,207,211,236]