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A006458 as a simple table

n a(n)
0 1
1 7
2 31
3 115
4 391
5 1267
6 3979
7 12271
8 37423
9 113371
10 342091
11 1029799
12 3095671
13 9298147
14 27914179
15 83777503
16 251394415
17 754292827
18 2263072411
19 6789560407
20 20369288455
21 61108939795
22 183328720435
23 549989524879
24 1649974525855
25 4949934107083
26 14849820951115

[1,7,31,115,391,1267,3979,12271,37423,113371,
 342091,1029799,3095671,9298147,27914179,83777503,
 251394415,754292827,2263072411,6789560407,
 20369288455,61108939795,183328720435,549989524879,
 1649974525855,4949934107083,14849820951115]

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Last modified May 20 13:56 EDT 2024. Contains 372716 sequences. (Running on oeis4.)