A246494 - OEIS

A246494

Smallest k such that 6^^n is not congruent to 6^^(n-1) mod k, where 6^^n denotes the power tower 6^6^...^6 (in which 6 appears n times).

2, 4, 13, 47, 107, 643, 1439, 2879, 34549, 138197, 858239, 2029439, 36449279

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

For general remarks regarding sequences of this type, see A246491.

LINKS

PROG

(Sage, cython) Use linked source from A246491 with this command: find_k_values(6, 1, 1)

CROSSREFS

KEYWORD

nonn,more

AUTHOR

STATUS

approved