OFFSET
1,2
COMMENTS
b(n) = A027750(n). {a(n)} is a permutation of the positive integers.
LINKS
EXAMPLE
The first 6 terms of {a(k)} are 1,2,4,3,7,5. So the positive integers not occurring among these terms are 6,8,9,10,... The 7th term of A027750 is 2. So a(7) = 8.
PROG
(PARI) { val = List([1..90]); n = 0; for (m=1, oo, fordiv (m, d, v = val[d]; listpop(val, d); print1 (v", "); if (n++==72, break (2)))) } \\ Rémy Sigrist, Apr 20 2022
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Jun 18 2006
EXTENSIONS
Extended by Ray Chandler, Jun 19 2006
Edited by Charles R Greathouse IV, Apr 27 2010
STATUS
approved