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A055268 as a simple table

n a(n)
0 1
1 15
2 65
3 185
4 420
5 826
6 1470
7 2430
8 3795
9 5665
10 8151
11 11375
12 15470
13 20580
14 26860
15 34476
16 43605
17 54435
18 67165
19 82005
20 99176
21 118910
22 141450
23 167050
24 195975
25 228501
26 264915
27 305515
28 350610
29 400520
30 455576
31 516120
32 582505
33 655095
34 734265

[1,15,65,185,420,826,1470,2430,3795,5665,8151,
 11375,15470,20580,26860,34476,43605,54435,67165,
 82005,99176,118910,141450,167050,195975,228501,
 264915,305515,350610,400520,455576,516120,582505,
 655095,734265]

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Last modified April 25 09:34 EDT 2024. Contains 371967 sequences. (Running on oeis4.)