A098289 Let a(1)=0. Then a(i+1)=position of first occurrence of a(i) in decimal expansion of log 2.

0, 9, 2, 22, 419, 591, 898, 915, 285, 3618, 10367, 5396, 1192, 8251, 13198, 16050, 47987, 146191, 2518028, 7744270, 16819386

Offset

1,2

Links

Table of n, a(n) for n=1..21.

Example

log 2 = 0.693147180559945309417232121458...
For example, a(2)=9 because the 9th digit of log 2 after decimal point is 0 and this is the first occurrence of 0.
a(3)=2 because 2nd decimal digit of log 2 is 9, a(4)=22 because 22nd decimal digit of log 2 is 2 and so on.

Crossrefs

Cf. A098266 (for e recurrence), A097614 (for Pi recurrence).

Sequence in context: A040080 A272033 A356356 * A152020 A055516 A248314

Adjacent sequences: A098286 A098287 A098288 * A098290 A098291 A098292

Keyword

nonn,base

Author

Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 02 2004

Extensions

Edited by N. J. A. Sloane, Oct 15 2006

More terms from Charles R Greathouse IV, Oct 09 2006

Status

approved