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A093093 "Fibonacci in digits - up and down": start with a(1)=1, a(2)=1; repeatedly adjoin either the sum of the two previous terms (if that sum happens to be odd) or else adjoin digits of the sum of previous two terms (if that sum happens to be even). 0
1, 1, 2, 3, 5, 8, 13, 21, 3, 4, 2, 4, 7, 6, 6, 11, 13, 1, 2, 17, 2, 4, 1, 4, 3, 19, 19, 6, 5, 5, 7, 2, 2, 3, 8, 25, 11, 1, 0, 1, 2, 9, 4, 5, 11, 33, 3, 6, 1, 2, 1, 1, 3, 11, 13, 9, 1, 6, 4, 4, 3, 6, 9, 7, 3, 3, 2, 4, 1, 4, 2, 4, 2, 2, 1, 0, 7, 1, 0, 8, 7, 9, 15, 1, 6, 1, 0, 6, 5, 6, 5, 5, 6, 6, 6, 4, 3, 1, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

... a(8)=a(6)+a(7), a(9)=left digit of (a(7)+a(8)=13+21=3 4) as 34 is even, a(10)=right digit of (a(7)+a(8)=13+21=3 4) as 34 is even, a(13)=a(9)+a(10) as odd, ...

CROSSREFS

Cf. A093086 to A093092.

Sequence in context: A100582 A193616 A273715 * A345095 A281408 A327451

Adjacent sequences:  A093090 A093091 A093092 * A093094 A093095 A093096

KEYWORD

nonn,base

AUTHOR

Bodo Zinser, Mar 20 2004

STATUS

approved

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Last modified January 23 10:11 EST 2022. Contains 350510 sequences. (Running on oeis4.)