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A006765 as a simple table

n a(n)
1 0
2 0
3 1
4 4
5 11
6 34
7 107
8 368
9 1284
10 4654
11 17072
12 63599
13 238590
14 901970
15 3426575
16 13079254
17 50107908
18 192622051
19 742624231
20 2870671949
21 11123060677
22 43191857687
23 168047007727
24 654999700402
25 2557227044763
26 9999088822074
27 39153010938486
28 153511100594602
29 602621953061977
30 2368347037571251
31 9317706529987949
32 36695016991712878

[0,0,1,4,11,34,107,368,1284,4654,17072,63599,
 238590,901970,3426575,13079254,50107908,192622051,
 742624231,2870671949,11123060677,43191857687,
 168047007727,654999700402,2557227044763,
 9999088822074,39153010938486,153511100594602,
 602621953061977,2368347037571251,9317706529987949,
 36695016991712878]

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Last modified May 18 19:36 EDT 2024. Contains 372666 sequences. (Running on oeis4.)