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A221525 as a simple table

na(n)
10
26
394
4536
51940
65368
712458
825544
947776
1083240
11137078
12215608
13326444
14478616
15682690
16950888
171297208
181737544
192289806
202974040
213812548
224830008
236053594
247513096
259241040
2611272808
2713646758
2816404344
2919590236
3023252440

[0,6,94,536,1940,5368,12458,25544,47776,83240,
 137078,215608,326444,478616,682690,950888,1297208,
 1737544,2289806,2974040,3812548,4830008,6053594,
 7513096,9241040,11272808,13646758,16404344,
 19590236,23252440]