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A108679 as a simple table

n a(n)
0 1
1 21
2 196
3 1176
4 5292
5 19404
6 60984
7 169884
8 429429
9 1002001
10 2186184
11 4504864
12 8836464
13 16604784
14 30046752
15 52581816
16 89311761
17 147685461
18 238369516
19 376372920
20 582481900
21 885069900
22 1322357400
23 1945206900
24 2820550005
25 4035556161
26 5702666256
27 7965629056

[1,21,196,1176,5292,19404,60984,169884,429429,
 1002001,2186184,4504864,8836464,16604784,30046752,
 52581816,89311761,147685461,238369516,376372920,
 582481900,885069900,1322357400,1945206900,
 2820550005,4035556161,5702666256,7965629056]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)