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A291409 as a simple table

na(n)
02
16
214
331
466
5136
6272
7534
81030
91958
103678
116837
1212594
1323016
1441768
1575325
16135084
17241032
18428112
19757236
201334292
212342892
224100676
237155937
2412453170
2521616242
2637432010
2764675099
28111512574
29191893120
30329605760
31565166682
32967491754
331653659282

[2,6,14,31,66,136,272,534,1030,1958,3678,6837,
 12594,23016,41768,75325,135084,241032,428112,
 757236,1334292,2342892,4100676,7155937,12453170,
 21616242,37432010,64675099,111512574,191893120,
 329605760,565166682,967491754,1653659282]