A065250 - OEIS

A065250

Permutation of N induced by the order-preserving permutation of the positive rational numbers (x -> 2x), positions in Stern-Brocot tree.

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

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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