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A113442 as a simple table

n a(n)
0 1
1 4
2 17
3 72
4 306
5 1305
6 5577
7 23858
8 102108
9 437080
10 1871065
11 8009866
12 34289712
13 146792138
14 628407994
15 2690174883
16 11516466985
17 49301256865
18 211055514017
19 903515089697
20 3867890010850
21 16558188448465
22 70884540117396

[1,4,17,72,306,1305,5577,23858,102108,437080,
 1871065,8009866,34289712,146792138,628407994,
 2690174883,11516466985,49301256865,211055514017,
 903515089697,3867890010850,16558188448465,
 70884540117396]

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Last modified May 18 06:11 EDT 2024. Contains 372618 sequences. (Running on oeis4.)