1,2

Self-inverse permutation of the natural numbers;

A115310(n+5,6) = a(n);

if n is written in base 7 representation, then a(n) is the value after replacing all digits d (but not the leading one) by 6-d.

Table of n, a(n) for n=1..72.

Index entries for sequences that are permutations of the natural numbers

Cf. A054429, A115303, A115304, A115305, A115306, A115308, A115309, A106649.

Sequence in context: A165304 A266642 A245450 * A171597 A086185 A072564

Adjacent sequences: A115304 A115305 A115306 * A115308 A115309 A115310

nonn,base

Reinhard Zumkeller, Jan 20 2006

approved