A121413 - cp's OEIS frontend

A121413 Column 1 of triangle A121412, in which row n of T equals row (n-1) of T^(n+1) with an appended '1'.

n	a(n)
0	1
1	1
2	4
3	30
4	335
5	4984
6	92652
7	2065146
8	53636520
9	1589752230
10	52926799310
11	1954793723688
12	79297921097850
13	3504206787532290
14	167533486104374420
15	8615231103973721610
16	474145710046504872894
17	27806642356199323970739

[1, 1, 4, 30, 335, 4984, 92652, 2065146, 53636520, 1589752230, 52926799310, 1954793723688, 79297921097850, 3504206787532290, 167533486104374420, 8615231103973721610, 474145710046504872894, 27806642356199323970739]

cp's OEIS Frontend

A121413 Column 1 of triangle A121412, in which row n of T equals row (n-1) of T^(n+1) with an appended '1'.

Table of values

List of values