A064707 Inverse square of permutation defined by A003188.

0, 1, 2, 3, 5, 4, 7, 6, 10, 11, 8, 9, 15, 14, 13, 12, 21, 20, 23, 22, 16, 17, 18, 19, 31, 30, 29, 28, 26, 27, 24, 25, 42, 43, 40, 41, 47, 46, 45, 44, 32, 33, 34, 35, 37, 36, 39, 38, 63, 62, 61, 60, 58, 59, 56, 57, 53, 52, 55, 54, 48, 49, 50, 51, 85, 84, 87, 86, 80, 81, 82, 83

Offset

0,3

Comments

Not the same as A100281: a(n)=A100281(n)=A099896(A099896(n)) only for n<64. - Reinhard Zumkeller, Nov 11 2004

Links

Ivan Neretin, Table of n, a(n) for n = 0..8191

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = A180200(A233279(n)), n > 0. - Yosu Yurramendi, Apr 05 2017

Prog

(MATLAB) A = 1; for i = 1:7 B = A(end:-1:1); A = [A (B + length(A))]; end C = A(A); for i = 1:128 A(C(i)) = i - 1; end A

Crossrefs

Inverse of permutation defined by A064706. Cf. A003188.

Sequence in context: A064706 A100282 A100281 * A335535 A276346 A123882

Adjacent sequences: A064704 A064705 A064706 * A064708 A064709 A064710

Keyword

nonn,look,easy

Author

N. J. A. Sloane, Oct 13 2001

Extensions

More terms from David Wasserman, Aug 02 2002

Status

approved