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A261854 as a simple table

na(n)
37
421
596
6832
71539
84281
910902
1076020
11117585
12306639
13634686
141537206
159013319
1613793487
1732005392
1864458596
19138068775
20278292429
211622912266
222321086080
235318890971
2410014128239
2520784037248
2638209197732
2780154402633
28415073903937
29593664848658

[7,21,96,832,1539,4281,10902,76020,117585,306639,
 634686,1537206,9013319,13793487,32005392,64458596,
 138068775,278292429,1622912266,2321086080,
 5318890971,10014128239,20784037248,38209197732,
 80154402633,415073903937,593664848658]