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A031623 as a simple table

na(n)
115178
225681
338537
452153
553069
653993
770981
872586
990289
1091493
11115961
12137341
13140317
14164554
15166993
16168629
17170273
18171098
19192469
20193346
21195989
22196874
23197761
24201329
25229213
26258905
27260941
28262985
29265037
30267097
31271241

[15178,25681,38537,52153,53069,53993,70981,72586,
 90289,91493,115961,137341,140317,164554,166993,
 168629,170273,171098,192469,193346,195989,196874,
 197761,201329,229213,258905,260941,262985,265037,
 267097,271241]