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A055909 as a simple table

na(n)
31
46
520
653
7121
8249
9471
10836
111409
122276
133544
145350
157862
1611286
1715866
1821896
1929721
2039746
2152436
2268331
2388047
24112287
25141841
26177604
27220577
28271880
29332752
30404572
31488860
32587292
33701700
34834096
35986673
361161822
371362132

[1,6,20,53,121,249,471,836,1409,2276,3544,5350,
 7862,11286,15866,21896,29721,39746,52436,68331,
 88047,112287,141841,177604,220577,271880,332752,
 404572,488860,587292,701700,834096,986673,1161822,
 1362132]