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A026564 as a simple table

n a(n)
0 1
1 2
2 6
3 11
4 33
5 64
6 191
7 376
8 1122
9 2222
10 6636
11 13180
12 39395
13 78373
14 234414
15 466840
16 1397034
17 2784266
18 8335242
19 16620976
20 49773018
21 99291358
22 297406884
23 593484440
24 1777995535
25 3548969075
26 10633840743
27 21230215328
28 63620551947

[1,2,6,11,33,64,191,376,1122,2222,6636,13180,
 39395,78373,234414,466840,1397034,2784266,8335242,
 16620976,49773018,99291358,297406884,593484440,
 1777995535,3548969075,10633840743,21230215328,
 63620551947]

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