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A031723 as a simple table

na(n)
12027
28104
318231
432408
550635
672912
799239
8129616
9164043
10202520
11245047
12291624
13342251
14396928
15455655
16518432
17585259
18656136
19731063
20810040
21893067
22980144
231071271
241166448
251265675
261368952
271476279
281587656
291703083
301822560

[2027,8104,18231,32408,50635,72912,99239,129616,
 164043,202520,245047,291624,342251,396928,455655,
 518432,585259,656136,731063,810040,893067,980144,
 1071271,1166448,1265675,1368952,1476279,1587656,
 1703083,1822560]