A147681 - cp's OEIS frontend

A147681 Late-growing permutations: number of permutations of 1..n with every partial sum <= the same partial sum averaged over all permutations.

n	a(n)
0	1
1	1
2	1
3	3
4	7
5	35
6	139
7	1001
8	5701
9	53109
10	402985
11	4605271
12	43665667
13	589809987
14	6735960079
15	104899483845
16	1402547616085
17	24698838710457
18	378845419610773
19	7444522779300351
20	128830635114146047
21	2792467448952670671
22	53854927962971227495
23	1276369340371154144337
24	27141331409803338993193
25	698008560075731437652425
26	16228797258964121571885457
27	450111715263775132783135875

[1, 1, 1, 3, 7, 35, 139, 1001, 5701, 53109, 402985, 4605271, 43665667, 589809987, 6735960079, 104899483845, 1402547616085, 24698838710457, 378845419610773, 7444522779300351, 128830635114146047, 2792467448952670671, 53854927962971227495, 1276369340371154144337, 27141331409803338993193, 698008560075731437652425, 16228797258964121571885457, 450111715263775132783135875]

cp's OEIS Frontend

A147681 Late-growing permutations: number of permutations of 1..n with every partial sum <= the same partial sum averaged over all permutations.

Table of values

List of values