login

A208972 as a simple table

na(n)
11
23
39
419
540
677
7130
8213
9325
10484
11687
12956
131294
141715
152233
162863
173612
184508
195551
206779
218186
229814
2311667
2413773
2516153
2618832
2721824
2825171
2928874
3032991
3137513
3242502
3347963
3453938
3560455
3667549
3775241
3883587
3992589
40102325
41112783

[1,3,9,19,40,77,130,213,325,484,687,956,1294,1715,
 2233,2863,3612,4508,5551,6779,8186,9814,11667,
 13773,16153,18832,21824,25171,28874,32991,37513,
 42502,47963,53938,60455,67549,75241,83587,92589,
 102325,112783]