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A026394 as a simple table

na(n)
31
45
517
634
775
8114
9202
10272
11425
12535
13771
14930
151267
161484
171940
182224
192817
203177
213925
224370
235291
245830
256942
267584
278905
289659
2911207
3012082
3113875
3214880
3316936
3418080
3520417
3621709
3724345
3825794
3928747
4030362
4133650
4235440
4339081
4441055
4545067

[1,5,17,34,75,114,202,272,425,535,771,930,1267,
 1484,1940,2224,2817,3177,3925,4370,5291,5830,6942,
 7584,8905,9659,11207,12082,13875,14880,16936,
 18080,20417,21709,24345,25794,28747,30362,33650,
 35440,39081,41055,45067]