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A064808 as a simple table

na(n)
01
13
29
322
445
581
6133
7204
8297
9415
10561
11738
12949
131197
141485
151816
162193
172619
183097
193630
204221
214873
225589
236372
247225
258151
269153
2710234
2811397
2912645
3013981
3115408
3216929
3318547
3420265
3522086
3624013
3726049
3828197
3930460
4032841
4135343
4237969
4340722

[1,3,9,22,45,81,133,204,297,415,561,738,949,1197,
 1485,1816,2193,2619,3097,3630,4221,4873,5589,6372,
 7225,8151,9153,10234,11397,12645,13981,15408,
 16929,18547,20265,22086,24013,26049,28197,30460,
 32841,35343,37969,40722]