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A340687 as a simple table

n a(n)
1 3
2 21
3 51
4 177
5 354
6 852
7 1686
8 3036
9 5994
10 8550
11 12933
12 16938
13 24303
14 30192
15 41616
16 52581
17 66600
18 82857
19 101199
20 128409
21 153669
22 194505
23 227193
24 271635
25 320898
26 368703
27 431640
28 490884
29 578805
30 646869
31 744717
32 851214
33 943068
34 1071741
35 1195638
36 1367913
37 1523694
38 1713300
39 1885389
40 2082696

[3,21,51,177,354,852,1686,3036,5994,8550,12933,
 16938,24303,30192,41616,52581,66600,82857,101199,
 128409,153669,194505,227193,271635,320898,368703,
 431640,490884,578805,646869,744717,851214,943068,
 1071741,1195638,1367913,1523694,1713300,1885389,
 2082696]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)