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A153847 as a simple table

na(n)
31
41
52
62
72
83
93
104
113
127
134
145
157
166
175
188
195
2010
219
228
236
2414
258
2610
279
2813
298
3019
318
3212
3313
3413
3513
3619
3710
3814
3915
4020
4111
4225
4311
4419
4519
4617
4712
4826
4914
5022
5119
5222
5314
5426
5519
5626
5721
5822
5915
6040
6116
6223
6325
6424
6523
6637
6717
6828
6925
7037
7118
7238
7319
7428
7531
7631
7725
7843
7920

[1,1,2,2,2,3,3,4,3,7,4,5,7,6,5,8,5,10,9,8,6,14,8,
 10,9,13,8,19,8,12,13,13,13,19,10,14,15,20,11,25,
 11,19,19,17,12,26,14,22,19,22,14,26,19,26,21,22,
 15,40,16,23,25,24,23,37,17,28,25,37,18,38,19,28,
 31,31,25,43,20]