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A068057 First differences of A068056. +0
4
1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 11, 1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 13, 1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 11, 1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 26, 1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 11, 1, 2, 1, 4, 1, 2, 1, 6, 1, 2, 1, 4, 1, 2, 1, 13, 1, 2, 1, 4, 1, 2 (list; graph; listen)
OFFSET

1,2

COMMENT

Every subsequence a(1) - a((2^k)-1) (with k >= 1) is palindromic, and their middle terms a(2^(k-1)) give A068059.

LINKS

A. Karttunen, Scheme functions for computing A066425 and related sequences.

CROSSREFS

Sequence in context: A059150 A133186 A084236 this_sequence A003484 A006519 A055975

Adjacent sequences: A068054 A068055 A068056 this_sequence A068058 A068059 A068060

KEYWORD

nonn

AUTHOR

Antti Karttunen (firstname.surname ), Feb 26 2002

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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