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A077866 as a simple table

na(n)
01
12
25
38
415
522
637
752
883
9114
10177
11240
12367
13494
14749
151004
161515
172026
183049
194072
206119
218166
2212261
2316356
2424547
2532738
2649121
2765504
2898271
29131038
30196573
31262108
32393179
33524250
34786393
351048536
361572823
372097110
383145685
394194260
406291411
418388562

[1,2,5,8,15,22,37,52,83,114,177,240,367,494,749,
 1004,1515,2026,3049,4072,6119,8166,12261,16356,
 24547,32738,49121,65504,98271,131038,196573,
 262108,393179,524250,786393,1048536,1572823,
 2097110,3145685,4194260,6291411,8388562]