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A219603 as a simple table

n a(n)
1 4
2 15
3 55
4 119
5 253
6 403
7 697
8 893
9 1357
10 1943
11 2263
12 3071
13 3977
14 4429
15 5123
16 6731
17 8083
18 9089
19 10519
20 11857
21 13067
22 15089
23 16351
24 18779
25 22019
26 23533
27 24823
28 27499
29 29321
30 31301
31 35941
32 40217
33 42881
34 46009
35 51703
36 53303
37 57619
38 61777
39 64963
40 69373
41 75001

[4,15,55,119,253,403,697,893,1357,1943,2263,3071,
 3977,4429,5123,6731,8083,9089,10519,11857,13067,
 15089,16351,18779,22019,23533,24823,27499,29321,
 31301,35941,40217,42881,46009,51703,53303,57619,
 61777,64963,69373,75001]

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Last modified April 18 17:56 EDT 2024. Contains 371781 sequences. (Running on oeis4.)