2,2

It seems possible that this is a permutation of the positive integers. Is it?

This is analogous to A175350(n) with a(1)=a(2)=1.

1 + sum{k=1 to n} a(k) = A177269(n).

Table of n, a(n) for n=2..40.

Cf. A175350, A177269

Sequence in context: A105207 A202148 A215825 * A289085 A242924 A133802

Adjacent sequences: A177265 A177266 A177267 * A177269 A177270 A177271

nonn

Hugo van der Sanden, May 06 2010

approved