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A299261 as a simple table

na(n)
01
18
231
381
4168
5303
6497
7760
81103
91537
102072
112719
123489
134392
145439
156641
168008
179551
1811281
1913208
2015343
2117697
2220280
2323103
2426177
2529512
2633119
2737009
2841192
2945679
3050481
3155608
3261071
3366881
3473048
3579583
3686497
3793800
38101503
39109617

[1,8,31,81,168,303,497,760,1103,1537,2072,2719,
 3489,4392,5439,6641,8008,9551,11281,13208,15343,
 17697,20280,23103,26177,29512,33119,37009,41192,
 45679,50481,55608,61071,66881,73048,79583,86497,
 93800,101503,109617]