A226245 Locations of successive record-setters (maxima) in Hofstadter's Q-sequence

1, 3, 4, 6, 7, 9, 12, 15, 18, 20, 24, 31, 35, 38, 41, 43, 48, 63, 77, 80, 81, 84, 87, 90, 96, 115, 118, 121, 124, 135, 152, 157, 160, 165, 171, 174, 179, 184, 192, 223, 235, 253, 269, 278, 286, 298, 311, 314, 320, 321

Offset

1,2

Comments

A226244(n) = A005185(a(n)).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

Example

a(8) = 15 because the first 15 terms of Hofstadter's Q-sequence are 1,1,2,3,3,4,5,5,6,6,6,8,8,8,10, and the 8th successive maximum is 10, which appears for the first time at position 15

Prog

(Haskell)
a226245 n = a226245_list !! (n-1)
-- See A226244: for definition of a226245_list.
-- Reinhard Zumkeller, Jun 02 2013

Crossrefs

Cf. A005185, A226244.

Sequence in context: A089038 A336175 A137673 * A369610 A236386 A066271

Adjacent sequences: A226242 A226243 A226244 * A226246 A226247 A226248

Keyword

nonn

Author

Jeffrey Shallit, Jun 01 2013

Status

approved