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A081589 as a simple table

n a(n)
0 1
1 13
2 61
3 145
4 265
5 421
6 613
7 841
8 1105
9 1405
10 1741
11 2113
12 2521
13 2965
14 3445
15 3961
16 4513
17 5101
18 5725
19 6385
20 7081
21 7813
22 8581
23 9385
24 10225
25 11101
26 12013
27 12961
28 13945
29 14965
30 16021
31 17113
32 18241
33 19405
34 20605
35 21841
36 23113
37 24421
38 25765
39 27145

[1,13,61,145,265,421,613,841,1105,1405,1741,2113,
 2521,2965,3445,3961,4513,5101,5725,6385,7081,7813,
 8581,9385,10225,11101,12013,12961,13945,14965,
 16021,17113,18241,19405,20605,21841,23113,24421,
 25765,27145]

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Last modified June 24 11:45 EDT 2021. Contains 345416 sequences. (Running on oeis4.)