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A065250 Permutation of N induced by the order-preserving permutation of the positive rational numbers (x -> 2x), positions in Stern-Brocot tree. 4
3, 1, 15, 5, 12, 7, 63, 2, 23, 48, 6, 29, 60, 31, 255, 9, 20, 11, 95, 192, 24, 51, 26, 14, 119, 240, 30, 125, 252, 127, 1023, 4, 39, 80, 10, 45, 92, 47, 383, 768, 96, 195, 98, 25, 207, 104, 13, 57, 116, 59, 479, 960, 120, 243, 122, 62, 503, 1008, 126, 509, 1020, 511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..62.

Index entries for sequences related to Stern's sequences

Index entries for sequences that are permutations of the natural numbers

MAPLE

[seq(A065250(j), j=1..120)]; A065250 := n -> frac2position_in_whole_SB_tree((SternBrocotTreeNum(n)/SternBrocotTreeDen(n))*2);

CROSSREFS

Cf. A057114, A065251. Inverse permutation A065249.

Sequence in context: A259841 A228540 A144815 * A092589 A048966 A297704

Adjacent sequences:  A065247 A065248 A065249 * A065251 A065252 A065253

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 25 2001

STATUS

approved

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Last modified January 20 23:20 EST 2019. Contains 319343 sequences. (Running on oeis4.)