A128755 Inverse of A128754.

7, 8, 2, 1, 15, 3, 14, 5, 4, 23, 6, 9, 12, 55, 10, 11, 20, 13, 21, 29, 16, 19, 18, 30, 22, 38, 24, 43, 26, 17, 28, 27, 37, 25, 39, 31, 32, 54, 34, 61, 40, 33, 42, 41, 58, 35, 36, 45, 48, 47, 46, 57, 44, 78, 50, 51, 64, 76, 56, 74, 52, 49, 60, 63, 77, 53, 62, 59, 83, 67, 66, 65

Offset

1,1

Comments

Seemingly the inversion maintains the characteristics of being an "infinite braid".

Links

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

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)}
pinverse(A128754)

Crossrefs

Inverse of A128754, Cf. A128756, A128757.

Sequence in context: A126625 A154169 A245260 * A088367 A196610 A198938

Adjacent sequences: A128752 A128753 A128754 * A128756 A128757 A128758

Keyword

nonn

Author

Ferenc Adorjan (fadorjan(AT)freemail.hu or ferencadorjan(AT)gmail.com), Mar 24 2007

Status

approved