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A068722 as a simple table

na(n)
01
135
2247
3925
42501
55551
610795
719097
831465
949051
1073151
11105205
12146797
13199655
14265651
15346801
16445265
17563347
18703495
19868301
201060501
211282975
221538747
231830985
242163001
252538251
262960335
273432997
283960125
294545751
305194051
315909345
326696097
337558915

[1,35,247,925,2501,5551,10795,19097,31465,49051,
 73151,105205,146797,199655,265651,346801,445265,
 563347,703495,868301,1060501,1282975,1538747,
 1830985,2163001,2538251,2960335,3432997,3960125,
 4545751,5194051,5909345,6696097,7558915]