A220447 - cp's OEIS frontend

A220447 Define sequence x(n) by x(1)=1, thereafter x(n) = (x(n-1)+n)/(1-n*x(n-1)); sequence gives denominator(x(n)).

n	a(n)
1	1
2	1
3	1
4	1
5	19
6	73
7	331
8	43
9	281
10	4511
11	10873
12	322921
13	12179
14	720817
15	538759
16	87995911
17	1185403
18	37171235
19	46336951
20	6986985769
21	2602576465
22	243540693677
23	181777598557
24	13097400661955
25	135996437150855
26	8249498995171439
27	56213506181241631
28	601615828819880125
29	10365435567354511181

[1, 1, 1, 1, 19, 73, 331, 43, 281, 4511, 10873, 322921, 12179, 720817, 538759, 87995911, 1185403, 37171235, 46336951, 6986985769, 2602576465, 243540693677, 181777598557, 13097400661955, 135996437150855, 8249498995171439, 56213506181241631, 601615828819880125, 10365435567354511181]

cp's OEIS Frontend

A220447 Define sequence x(n) by x(1)=1, thereafter x(n) = (x(n-1)+n)/(1-n*x(n-1)); sequence gives denominator(x(n)).

Table of values

List of values