1,1

This sequence is a permutation of the positive integers, where each a(n) is the smallest positive integer not occurring earlier in the sequence such that the m-th term of the inverse permutation A130509 never equals a(m), for all positive integers m.

Cf. A130509.

Sequence in context: A060116 A114690 A049274 this_sequence A055231 A072400 A007913

Adjacent sequences: A130505 A130506 A130507 this_sequence A130509 A130510 A130511

easy,nonn

Leroy Quet (qq-quet(AT)mindspring.com), Jun 01 2007