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A192910 as a simple table

n a(n)
0 0
1 1
2 4
3 13
4 42
5 133
6 418
7 1311
8 4110
9 12883
10 40380
11 126563
12 396684
13 1243317
14 3896896
15 12213937
16 38281814
17 119985657
18 376067806
19 1178699171
20 3694364986
21 11579148423
22 36292212248
23 113749700903
24 356522616120
25 1117439209033
26 3502359540252

[0,1,4,13,42,133,418,1311,4110,12883,40380,126563,
 396684,1243317,3896896,12213937,38281814,
 119985657,376067806,1178699171,3694364986,
 11579148423,36292212248,113749700903,356522616120,
 1117439209033,3502359540252]

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Last modified May 18 15:58 EDT 2024. Contains 372664 sequences. (Running on oeis4.)