A121414 - cp's OEIS frontend

A121414 Column 2 of triangle A121412, in which row n of T=A121412 equals row (n-1) of T^(n+1) with an appended '1'.

n	a(n)
0	1
1	1
2	5
3	45
4	581
5	9730
6	199692
7	4843125
8	135345925
9	4278317373
10	150818840250
11	5863215069621
12	249105031449435
13	11480173020040450
14	570303168053225908
15	30375972794764190385
16	1726700205634807475115
17	104332294453480284687895

[1, 1, 5, 45, 581, 9730, 199692, 4843125, 135345925, 4278317373, 150818840250, 5863215069621, 249105031449435, 11480173020040450, 570303168053225908, 30375972794764190385, 1726700205634807475115, 104332294453480284687895]

cp's OEIS Frontend

A121414 Column 2 of triangle A121412, in which row n of T=A121412 equals row (n-1) of T^(n+1) with an appended '1'.

Table of values

List of values