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A086705 Decimal expansion of a constant related to Niven numbers. 0
1, 1, 9, 3, 9, 3, 3, 0, 1, 1, 1, 8, 2, 0, 9, 7, 7, 6, 2, 0, 8, 3, 4, 0, 2, 9, 7, 6, 5, 0, 3, 0, 0, 3, 6, 6, 3, 2, 0, 0, 5, 7, 1, 1, 4, 2, 2, 5, 1, 9, 5, 6, 3, 5, 7, 9, 4, 3, 2, 0, 7, 0, 5, 9, 7, 6, 0, 9, 6, 3, 5, 7, 5, 3, 8, 8, 2, 5, 6, 8, 4, 1, 6, 0, 3, 8, 5, 0, 4, 0, 2, 6, 3, 9, 0, 5, 0, 9, 6, 9, 5, 1, 0, 6, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The number N(x) of Niven numbers less than x is given by N(x) = (c+o(1))*x/log(x).

LINKS

Table of n, a(n) for n=1..105.

Jean-Marie De Koninck and Nicolas Doyon, Large and Small Gaps Between Consecutive Niven Numbers, J. Integer Seqs., Vol. 6, 2003, Article 03.2.5.

FORMULA

c = (14/27)*log(10).

EXAMPLE

1.1939330111820977620834029765030036632005711422519563579432....

PROG

(PARI) (14/27)*log(10) \\ Michel Marcus, Jan 15 2018

CROSSREFS

Cf. A005349.

Sequence in context: A159467 A198608 A273637 * A199866 A276558 A196829

Adjacent sequences:  A086702 A086703 A086704 * A086706 A086707 A086708

KEYWORD

cons,nonn

AUTHOR

Benoit Cloitre, Jul 28 2003

STATUS

approved

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Last modified May 19 08:25 EDT 2019. Contains 323389 sequences. (Running on oeis4.)