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A346897 as a simple table

na(n)
015
131
270
3172
4457
52295
612347
770843
8431636
92781372
1018885177
11134670425
121005626319
137842880313
1463733789544
15538521313772
164722239916109
1742899823779887
18403127907995427
193912789622898471
2039175487045290456
21404110470650751416
224290001467563698869

[15,31,70,172,457,2295,12347,70843,431636,2781372,
 18885177,134670425,1005626319,7842880313,
 63733789544,538521313772,4722239916109,
 42899823779887,403127907995427,3912789622898471,
 39175487045290456,404110470650751416,
 4290001467563698869]