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A167906 Fixed points of permutations A121878, A167904, A167905. 3
1, 2, 3, 4, 14, 17, 18, 19, 20, 21, 22, 35, 36, 37, 42, 44, 45, 46, 47, 48, 49, 63, 64, 65, 66, 67, 86, 89, 90, 91, 92, 93, 94, 107, 108, 109, 110, 111, 112, 123, 132, 134, 135, 136, 137, 146, 148, 161, 162, 168, 170, 171, 179, 180, 185, 186, 187, 189, 191, 192, 193 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

A121878(a(n))=a(n); A167904(a(n))=a(n); A167905(a(n))=a(n).

LINKS

Table of n, a(n) for n=1..61.

PROG

(PARI) print1(1, ", "); v=[1]; n=1; while(n<100, if(issquarefree(n+v[#v])&&!vecsearch(vecsort(v), n), v=concat(v, n); if(n==#v, print1(n, ", ")); n=0); n++) \\ Derek Orr, Jun 09 2015

CROSSREFS

Sequence in context: A091907 A103048 A140128 * A100998 A295286 A127283

Adjacent sequences:  A167903 A167904 A167905 * A167907 A167908 A167909

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Nov 15 2009

STATUS

approved

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Last modified April 7 15:56 EDT 2020. Contains 333306 sequences. (Running on oeis4.)