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A135026 as a simple table

n a(n)
1 7
2 26
3 81
4 270
5 841
6 2480
7 7479
8 22404
9 66535
10 197470
11 592419
12 1772034
13 5317217
14 15955046
15 47860367
16 143540614
17 430579631
18 1291494336
19 3874347869
20 11622575710
21 34869569547
22 104608356834
23 313820413899
24 941454837836
25 2824364840671
26 8473084264392
27 25419236780193
28 76257724291584

[7,26,81,270,841,2480,7479,22404,66535,197470,
 592419,1772034,5317217,15955046,47860367,
 143540614,430579631,1291494336,3874347869,
 11622575710,34869569547,104608356834,313820413899,
 941454837836,2824364840671,8473084264392,
 25419236780193,76257724291584]

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Last modified April 23 15:19 EDT 2024. Contains 371916 sequences. (Running on oeis4.)