A245711 Permutation of natural numbers, odd bisection of A245705 incremented by one and halved: a(n) = (1+A245705((2*n)-1)) / 2.

1, 2, 3, 5, 7, 4, 19, 10, 35, 9, 17, 139, 107, 6, 37, 36, 23, 13, 555, 229, 87, 22, 275, 1676, 39, 11, 27, 68, 63, 326, 137, 28, 4435, 18, 53, 147, 25, 8, 6819, 9388, 995, 16, 155, 73, 3659, 14, 533, 838, 145, 20, 49, 851, 29, 587, 535, 403, 4179, 26, 501, 1059, 1611, 1163, 69, 152, 663, 51, 283, 222, 181, 21

Offset: 1

Author

Antti Karttunen, Jul 30 2014

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..10001
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Inverse: A245712.

Cf. A245705, A245605.

Programs

PARI

A245711(n) = (1+A245705((2*n)-1))/2;
for(n=1, 10001, write("b245711.txt", n, " ", A245711(n)));
\\ For the rest of code, see under A245705.

Scheme

(define (A245711 n) (/ (+ 1 (A245705 (+ n n -1))) 2))

Formula

a(n) = (1+A245705((2*n)-1)) / 2.