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A249961 as a simple table

n a(n)
1 15
2 285
3 2010
4 8790
5 28785
6 77595
7 181860
8 383580
9 745155
10 1355145
11 2334750
12 3845010
13 6094725
14 9349095
15 13939080
16 20271480
17 28839735
18 40235445
19 55160610
20 74440590
21 99037785
22 130066035
23 168805740
24 216719700
25 275469675
26 346933665

[15,285,2010,8790,28785,77595,181860,383580,
 745155,1355145,2334750,3845010,6094725,9349095,
 13939080,20271480,28839735,40235445,55160610,
 74440590,99037785,130066035,168805740,216719700,
 275469675,346933665]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)