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A366045 as a simple table

na(n)
11
22
34
44
511
620
736
864
9121
10222
11408
12748
131379
142536
154664
168576
1715777
1829018
1953372
2098164
21180555
22332092
23610812
241123456
252066361
263800630
276990448
2812857436
2923648515
3043496400
3180002352
32147147264
33270646017
34497795634
35915588916
361684030564

[1,2,4,4,11,20,36,64,121,222,408,748,1379,2536,
 4664,8576,15777,29018,53372,98164,180555,332092,
 610812,1123456,2066361,3800630,6990448,12857436,
 23648515,43496400,80002352,147147264,270646017,
 497795634,915588916,1684030564]