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A276687 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 11
6 30
7 122
8 336
9 1412
10 15129
11 44561
12 417542
13 2479120
14 7540843
15 35983502
16 451454834
17 5313515136
18 16809858904
19 190077477328
20 1124302066470
21 3521811953565
22 38563707677633
23 240966297786218
24 3192420711942298
25 95433674596402663
26 567734580765228356

[1,1,2,4,11,30,122,336,1412,15129,44561,417542,
 2479120,7540843,35983502,451454834,5313515136,
 16809858904,190077477328,1124302066470,
 3521811953565,38563707677633,240966297786218,
 3192420711942298,95433674596402663,
 567734580765228356]

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)