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A181314 as a simple table

na(n)
10
20
31
42
55
66
713
817
927
1038
1161
1280
13125
14174
15245
16359
17509
18727
191021
201484
212029
223006
234093
246029
258183
2612158
2716351
2824380
2932765
3048848
3165533
3297919
33131005
34196094
35262121
36392363
37524285
38785406
391048445
401571309
412097149
423143496
434194301
446288380
458388323

[0,0,1,2,5,6,13,17,27,38,61,80,125,174,245,359,
 509,727,1021,1484,2029,3006,4093,6029,8183,12158,
 16351,24380,32765,48848,65533,97919,131005,196094,
 262121,392363,524285,785406,1048445,1571309,
 2097149,3143496,4194301,6288380,8388323]