login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A276443 Permutation of natural numbers: a(1) = 1, a(A087686(n)) = A000069(1+a(n-1)), a(A088359(n)) = A001969(1+a(n)), where A088359 & A087686 = numbers that occur only once & more than once in A004001, and A000069 & A001969 are odious & evil numbers. 5
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 11, 15, 13, 14, 16, 17, 18, 20, 24, 19, 23, 30, 21, 27, 25, 22, 29, 31, 26, 28, 32, 33, 34, 36, 40, 48, 35, 39, 46, 60, 37, 43, 54, 41, 51, 49, 38, 45, 58, 47, 63, 61, 42, 53, 55, 50, 44, 57, 59, 62, 52, 56, 64, 65, 66, 68, 72, 80, 96, 67, 71, 78, 92, 120, 69, 75, 86, 108, 73, 83, 102, 81 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..8191

Index entries for sequences related to binary expansion of n

Index entries for sequences that are permutations of the natural numbers

FORMULA

a(1) = 1; for n > 1, if A093879(n-1) = 0 [when n is in A087686], a(n) = A000069(1+a(A080677(n)-1)), otherwise [when n is in A088359], a(n) = A001969(1+a(A004001(n)-1)).

As a composition of other permutations:

a(n) = A003188(A276441(n)).

PROG

(Scheme)

(definec (A276443 n) (cond ((< n 2) n) ((zero? (A093879 (- n 1))) (A000069 (+ 1 (A276443 (+ -1 (A080677 n)))))) (else (A001969 (+ 1 (A276443 (+ -1 (A004001 n))))))))

CROSSREFS

Inverse: A276444.

Cf. A000069, A001969, A004001, A080677, A087686, A088359, A093879.

Similar or related permutations: A003188, A276441, A276445 (compare the scatter plots).

Sequence in context: A287928 A085516 A276444 * A239139 A228723 A247397

Adjacent sequences:  A276440 A276441 A276442 * A276444 A276445 A276446

KEYWORD

nonn,base,look

AUTHOR

Antti Karttunen, Sep 03 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 16:57 EDT 2018. Contains 316289 sequences. (Running on oeis4.)