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A276068 as a simple table

n a(n)
2 1
3 3
4 9
5 26
6 74
7 210
8 598
9 1715
10 4963
11 14504
12 42808
13 127553
14 383451
15 1162134
16 3548060
17 10904023
18 33708595
19 104756233
20 327086895
21 1025603074
22 3228082910
23 10195295005
24 32300276271
25 102622734570
26 326893843104
27 1043767139218
28 3340051490096

[1,3,9,26,74,210,598,1715,4963,14504,42808,127553,
 383451,1162134,3548060,10904023,33708595,
 104756233,327086895,1025603074,3228082910,
 10195295005,32300276271,102622734570,326893843104,
 1043767139218,3340051490096]

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Last modified April 25 16:08 EDT 2019. Contains 322461 sequences. (Running on oeis4.)