A245705 Permutation of natural numbers: a(n) = A245607(A245708(n)).

1, 2, 3, 4, 5, 6, 9, 8, 13, 10, 7, 12, 37, 18, 19, 16, 69, 26, 17, 20, 33, 14, 277, 24, 213, 74, 11, 36, 73, 38, 71, 32, 45, 138, 25, 52, 1109, 34, 457, 40, 173, 66, 43, 28, 549, 554, 3351, 48, 77, 426, 21, 148, 53, 22, 135, 72, 125, 146, 651, 76, 273, 142, 55, 64

Offset

1,2

Comments

The even bisection halved gives the sequence back. The odd bisection incremented by one and halved gives A245711.

Links

Antti Karttunen, Table of n, a(n) for n = 1..10001

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = A245607(A245708(n)).

Prog

(PARI)
A245705(n) = A245607(A245708(n));
for(n=1, 10001, write("b245705.txt", n, " ", A245705(n)));
\\ Other code as in A245607 and A245708.
(Scheme) (define (A245705 n) (A245607 (A245708 n)))

Crossrefs

Inverse: A245706.

Fixed points: A245709.

Cf. A245607, A245708, A245605, A245711.

Sequence in context: A269847 A358522 A279407 * A075164 A240827 A023841

Adjacent sequences: A245702 A245703 A245704 * A245706 A245707 A245708

Keyword

nonn

Author

Antti Karttunen, Jul 30 2014

Status

approved