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A083215 as a simple table

n a(n)
1 3
2 12
3 37
4 86
5 185
6 328
7 549
8 834
9 1225
10 1776
11 2427
12 3278
13 4303
14 5464
15 6827
16 8470
17 10417
18 12552
19 15031
20 17800
21 20793
22 24190
23 27925
24 32108
25 36861
26 42012
27 47471
28 53356
29 59569
30 66236
31 73983
32 82236
33 91141
34 100454
35 110735
36 121456
37 132917

[3,12,37,86,185,328,549,834,1225,1776,2427,3278,
 4303,5464,6827,8470,10417,12552,15031,17800,20793,
 24190,27925,32108,36861,42012,47471,53356,59569,
 66236,73983,82236,91141,100454,110735,121456,
 132917]

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Last modified August 9 00:34 EDT 2020. Contains 336309 sequences. (Running on oeis4.)