1,1

Cf. A073631 = Nonprimes n such that n divides 3^(n-1) - 2^(n-1). Cf. A001047 = 3^n - 2^n. Cf. A130058 = numbers n such that k=n*23^2 divides 3^(k-1) - 2^(k-1).

Sequence in context: A118741 A130058 A119893 this_sequence A039539 A127732 A071958

Adjacent sequences: A130056 A130057 A130058 this_sequence A130060 A130061 A130062

hard,more,nonn

Alexander Adamchuk (alex(AT)kolmogorov.com), May 04 2007