A246679 Permutation of natural numbers, even bisection of A246675 halved: a(n) = A246675(2*n)/2.

1, 2, 4, 3, 8, 16, 5, 32, 64, 9, 128, 6, 7, 256, 512, 13, 10, 1024, 21, 2048, 4096, 11, 8192, 12, 25, 16384, 18, 33, 32768, 65536, 19, 26, 131072, 37, 262144, 524288, 17, 20, 1048576, 15, 2097152, 42, 45, 4194304, 36, 57, 50, 8388608, 27, 16777216, 33554432, 29, 67108864, 134217728, 61, 268435456, 66, 43, 52, 24, 73, 14

Offset

1,2

Comments

Equally: even bisection of A246677 halved.

Links

Antti Karttunen, Table of n, a(n) for n = 1..1024

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = A246675(2*n)/2.

a(n) = A246677(2*n)/2.

Prog

(Scheme) (define (A246679 n) (/ (A246675 (* 2 n)) 2))

Crossrefs

Inverse: A246680.

Cf. A246675, A246677.

a(n) differs from A244153(n+1) for the first time at n=16, where a(16) = 13, while A244153(17) = 17.

Sequence in context: A357988 A302747 A193949 * A244153 A366347 A308328

Adjacent sequences: A246676 A246677 A246678 * A246680 A246681 A246682

Keyword

nonn

Author

Antti Karttunen, Sep 02 2014

Status

approved