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A215836 Sixth 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. 3
0, 54, 1188, 954, 8322, 4908, 5034, 2934, 31776, 17742, 10428, 13968, 8688, 15174, 8814, 6714, 4374, 87990, 50496, 29682, 35382, 24042, 22008, 14928, 31968, 20268, 14988, 10848, 34974, 21474, 13314, 15114, 10974, 13014, 8874, 6534, 5094, 200244, 120330, 72456 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For the ordering of functions f_n see A215703.

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..7813

MAPLE

# load programs from A215703, then:

seq(A(6, n), n=1..100);

CROSSREFS

Row n=6 of A215703.

Number of distinct values of a(n) taken for functions with m x's: A199883.

Cf. A000081, A087803.

Sequence in context: A121625 A190399 A071803 * A160289 A079876 A017770

Adjacent sequences:  A215833 A215834 A215835 * A215837 A215838 A215839

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Aug 24 2012

STATUS

approved

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Last modified September 23 21:27 EDT 2020. Contains 337315 sequences. (Running on oeis4.)