A215839 - cp's OEIS frontend

A215839 Ninth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.

n	a(n)
1	0
2	-5112
3	253296
4	360144
5	6333336
6	3863808
7	6019416
8	3010680
9	56343456
10	27617616
11	14843808
12	26108208
13	13309272
14	39097296
15	18337680
16	14572944
17	7829424
18	293095080
19	139667616
20	70196904
21	101378376
22	55969128
23	55359216
24	31002552
25	111791088
26	56304360
27	40935024

[0, -5112, 253296, 360144, 6333336, 3863808, 6019416, 3010680, 56343456, 27617616, 14843808, 26108208, 13309272, 39097296, 18337680, 14572944, 7829424, 293095080, 139667616, 70196904, 101378376, 55969128, 55359216, 31002552, 111791088, 56304360, 40935024]

cp's OEIS Frontend

A215839 Ninth derivative of f_n at x=1, where f_n is the n-th of all functions that are representable as x^x^...^x with m>=1 x's and parentheses inserted in all possible ways.

Table of values

List of values