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A160456 as a simple table

na(n)
30
43
520
670
7172
8366
9709
101274
112166
123537
135573
148494
1512588
1618227
1725846
1835942
1949124
2066138
2187827
22115132
23149166
24191238
25242800
26305447
27381012
28471602
29579518
30707254
31857627
321033812
331239238
341477589
351752963

[0,3,20,70,172,366,709,1274,2166,3537,5573,8494,
 12588,18227,25846,35942,49124,66138,87827,115132,
 149166,191238,242800,305447,381012,471602,579518,
 707254,857627,1033812,1239238,1477589,1752963]