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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
OFFSET
1,2
COMMENTS
Will other terms than 1, 2 or 4 ever appear? Is there genuine periodicity?
FORMULA
a(n) = A112055(n+1)-A112055(n).
CROSSREFS
Sequence in context: A140957 A197250 A275578 * A353843 A090002 A061298
KEYWORD
nonn
AUTHOR
Antti Karttunen, Aug 28 2005
STATUS
approved