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A015221 as a simple table

n a(n)
0 1
1 5
2 55
3 91
4 285
5 385
6 819
7 1015
8 1785
9 2109
10 3311
11 3795
12 5525
13 6201
14 8555
15 9455
16 12529
17 13685
18 17575
19 19019
20 23821
21 25585
22 31395
23 33511
24 40425
25 42925
26 51039
27 53955
28 63365
29 66729
30 77531
31 81375
32 93665
33 98021
34 111895
35 116795
36 132349
37 137825
38 155155
39 161239
40 180441

[1,5,55,91,285,385,819,1015,1785,2109,3311,3795,
 5525,6201,8555,9455,12529,13685,17575,19019,23821,
 25585,31395,33511,40425,42925,51039,53955,63365,
 66729,77531,81375,93665,98021,111895,116795,
 132349,137825,155155,161239,180441]

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)