A183611 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A183611 as a simple table

n	a(n)
0	1
1	1
2	3
3	14
4	91
5	756
6	7657
7	91504
8	1260441
9	19663280
10	342669691
11	6597811584
12	139094618467
13	3186675803584
14	78834061767825
15	2094418664339456
16	59474007876381553
17	1797637447068293376
18	57623116235327599411

[1,1,3,14,91,756,7657,91504,1260441,19663280, 342669691,6597811584,139094618467,3186675803584, 78834061767825,2094418664339456,59474007876381553, 1797637447068293376,57623116235327599411]