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A112354 formatted as a simple table:

n a(n)
1 1
2 1
3 4
4 17
5 92
6 572
7 4156
8 34159
9 314368
10 3199844
11 35703996
12 433421495
13 5687955724
14 80256874912
15 1211781887796
16 19496946534720
17 333041104402860
18 6019770246910128
19 114794574818830716
20 2303332661416242633

[1,1,4,17,92,572,4156,34159,314368,3199844,
 35703996,433421495,5687955724,80256874912,
 1211781887796,19496946534720,333041104402860,
 6019770246910128,114794574818830716,
 2303332661416242633]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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