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A297972 as a simple table

na(n)
10
21
33
46
517
641
7104
8261
9655
101646
114133
1210381
1326072
1465481
15164459
16413046
171037385
182605441
196543688
2016434781
2141276727
22103668446
23260368189
24653926981
251642368440
264124885761
2710359845043
2826019239206
2965348545857
30164125953561

[0,1,3,6,17,41,104,261,655,1646,4133,10381,26072,
 65481,164459,413046,1037385,2605441,6543688,
 16434781,41276727,103668446,260368189,653926981,
 1642368440,4124885761,10359845043,26019239206,
 65348545857,164125953561]