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A135168 as a simple table

n a(n)
0 4
1 17
2 87
3 503
4 3123
5 20207
6 134067
7 903983
8 6162243
9 42326927
10 292300947
11 2026334063
12 14085963363
13 98111316047
14 684331387827
15 4778093469743
16 33385561572483
17 233393582711567
18 1632228682858707
19 11417969834487023
20 79887637217085603
21 559022711703937487

[4,17,87,503,3123,20207,134067,903983,6162243,
 42326927,292300947,2026334063,14085963363,
 98111316047,684331387827,4778093469743,
 33385561572483,233393582711567,1632228682858707,
 11417969834487023,79887637217085603,
 559022711703937487]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)