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A249032 First differences of A075326. 4
3, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 6, 4, 6, 4, 5, 5, 6, 4, 5, 5, 6, 4, 5, 5, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Can be constructed as follows. Apart from the initial "3", one always has either "6-4" (i.e., a 6 followed by a 4), or else "5-5". The 6-4's always come either alone (6-4) or triply (6-4, 6-4, 6-4), while the 5-5's always come alone. So if we let "6-4, 5-5" be represented by the numeral "1", and "6-4, 6-4, 6-4, 5-5" by the numeral "3", then the sequence of first differences, in this compressed code, is A080426, which itself is defined by a simple substitution rule. - D. R. Hofstadter, Oct 23 2014

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

D. R. Hofstadter, Anti-Fibonacci numbers, Oct 23 2014

Thomas Zaslavsky, Anti-Fibonacci Numbers: A Formula, Sep 26 2016

PROG

(Haskell)

a249032 n = a249032_list !! n

a249032_list = zipWith (-) (tail a075326_list) a075326_list

-- Reinhard Zumkeller, Oct 26 2014

CROSSREFS

Cf. A075326, A080426, A249031.

Sequence in context: A023676 A318524 A155530 * A251534 A073233 A011287

Adjacent sequences:  A249029 A249030 A249031 * A249033 A249034 A249035

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Oct 26 2014

STATUS

approved

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Last modified October 19 16:17 EDT 2019. Contains 328223 sequences. (Running on oeis4.)