A179977 Inverse permutation to A108971.

1, 2, 3, 4, 5, 6, 7, 8, 9, 17, 16, 15, 14, 13, 12, 11, 10, 25, 26, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 37, 36, 35, 34, 33, 32, 31, 30, 45, 46, 38, 39, 40, 41, 42, 43, 44, 47, 48, 49, 57, 56, 55, 54, 53, 52, 51, 50, 65, 66, 58, 59, 60, 61, 62, 63, 64, 67, 68, 69, 77, 76, 75

Offset

1,2

Comments

a(A108971(n)) = A108971(a(n)) = n;

a(A179978(n)) = A179978(a(n)) = A108971(n).

Links

Table of n, a(n) for n=1..72.

Crossrefs

Sequence in context: A133504 A335492 A108971 * A326298 A372281 A124359

Adjacent sequences: A179974 A179975 A179976 * A179978 A179979 A179980

Keyword

nonn

Author

Reinhard Zumkeller, Aug 04 2010

Status

approved