A129675 Inverse permutation to A129674.

3, 2, 1, 5, 7, 4, 6, 9, 15, 8, 11, 10, 12, 14, 13, 17, 21, 16, 19, 18, 20, 23, 27, 22, 24, 26, 25, 29, 31, 28, 30, 33, 37, 32, 35, 34, 36, 39, 43, 38, 40, 42, 41, 45, 51, 44, 47, 46, 48, 50, 49, 53, 55, 52, 54, 57, 63, 56, 59, 58, 60, 62, 61, 65, 69, 64, 67, 66, 68, 71, 75, 70

Offset

1,1

Comments

The inversion maintains the cyclic characteristics as described in A129674.

Links

Ferenc Adorjan, Table of n, a(n) for n = 1..10000

Index entries for sequences that are permutations of the natural numbers

Prog

(PARI) {pinverse(v)= /* Permutation inverse of a positive sequence */
local(n, m, x); n=matsize(v)[2]; x=vector(n);
for(i=1, n, if(v[i]<=n, x[v[i]]=i)); return(x)}
a=pinverse(A129674)

Crossrefs

Inverse of A129674, Cf. A128754, A128755, A129679 and A001969.

Sequence in context: A092879 A073370 A208511 * A232206 A209559 A081277

Adjacent sequences: A129672 A129673 A129674 * A129676 A129677 A129678

Keyword

nonn,base

Author

Ferenc Adorjan (fadorjan(AT)freemail.hu or ferencadorjan(AT)gmail.com), May 01 2007

Status

approved