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A031768 as a simple table

na(n)
12026
28102
318228
432404
550630
672906
799232
8129608
9164034
10202510
11245036
12291612
13342238
14396914
15455640
16518416
17585242
18656118
19731044
20810020
21893046
22980122
231071248
241166424
251265650
261368926
271476252
281587628
291703054
301822530

[2026,8102,18228,32404,50630,72906,99232,129608,
 164034,202510,245036,291612,342238,396914,455640,
 518416,585242,656118,731044,810020,893046,980122,
 1071248,1166424,1265650,1368926,1476252,1587628,
 1703054,1822530]