A011784 - cp's OEIS frontend

A011784 Levine's sequence. First construct a triangle as follows. Row 1 is {1,1}; if row n is {r_1, ..., r_k} then row n+1 consists of {r_k 1's, r_{k-1} 2's, r_{k-2} 3's, etc.}; sequence consists of the final elements in each row.

n	a(n)
1	1
2	2
3	2
4	3
5	4
6	7
7	14
8	42
9	213
10	2837
11	175450
12	139759600
13	6837625106787
14	266437144916648607844
15	508009471379488821444261986503540
16	37745517525533091954736701257541238885239740313139682
17	5347426383812697233786139576220450142250373277499130252554080838158299886992660750432

[1, 2, 2, 3, 4, 7, 14, 42, 213, 2837, 175450, 139759600, 6837625106787, 266437144916648607844, 508009471379488821444261986503540, 37745517525533091954736701257541238885239740313139682, 5347426383812697233786139576220450142250373277499130252554080838158299886992660750432]

cp's OEIS Frontend

A011784 Levine's sequence. First construct a triangle as follows. Row 1 is {1,1}; if row n is {r_1, ..., r_k} then row n+1 consists of {r_k 1's, r_{k-1} 2's, r_{k-2} 3's, etc.}; sequence consists of the final elements in each row.

Table of values

List of values