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A200190 as a simple table

n a(n)
1 1
2 12
3 66
4 426
5 2794
6 18838
7 127800
8 881008
9 6081086
10 42452472
11 296258332
12 2085263400
13 14662923954
14 103810065802
15 734016517080
16 5219300699654
17 37060739113354
18 264413563521598
19 1883784631395118
20 13476226807283384

[1,12,66,426,2794,18838,127800,881008,6081086,
 42452472,296258332,2085263400,14662923954,
 103810065802,734016517080,5219300699654,
 37060739113354,264413563521598,1883784631395118,
 13476226807283384]

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Last modified March 19 07:31 EDT 2024. Contains 370955 sequences. (Running on oeis4.)