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A112085 First differences of A112055. 1
1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 4, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 4, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 4, 1, 2, 2, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Will other terms than 1, 2 or 4 ever appear? Is there genuine periodicity?

LINKS

Table of n, a(n) for n=1..102.

FORMULA

a(n) = A112055(n+1)-A112055(n).

CROSSREFS

Sequence in context: A140957 A197250 A275578 * A090002 A061298 A276468

Adjacent sequences:  A112082 A112083 A112084 * A112086 A112087 A112088

KEYWORD

nonn

AUTHOR

Antti Karttunen, Aug 28 2005

STATUS

approved

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Last modified September 21 22:05 EDT 2018. Contains 315263 sequences. (Running on oeis4.)