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A190796 Number of digits in the minimal base-phi representation of n. 1
1, 4, 5, 5, 8, 8, 9, 9, 9, 9, 9, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A130600(n) for the digits in the minimal base phi representation of n.

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = A055778(n) + A133775(n).

a(n) <= 2 * ceiling( log(n) / log(phi) ) for n > 1.

MATHEMATICA

nn = 100; len = 2*Ceiling[Log[GoldenRatio, nn]]; Table[d = RealDigits[n, GoldenRatio, len]; last1 = Position[d[[1]], 1][[-1, 1]]; last1, {n, 1, nn}]

CROSSREFS

Cf. A055778, A130600, A133775.

Sequence in context: A071570 A336047 A082448 * A070783 A198334 A055593

Adjacent sequences:  A190793 A190794 A190795 * A190797 A190798 A190799

KEYWORD

nonn,base

AUTHOR

T. D. Noe, May 20 2011

STATUS

approved

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Last modified August 4 08:20 EDT 2020. Contains 336201 sequences. (Running on oeis4.)