1,2
Cf. A124983, A002145, A124982.
Sequence in context: A136971 A061677 A110126 * A065020 A136986 A096109
Adjacent sequences: A125017 A125018 A125019 * A125021 A125022 A125023
nonn
Artur Jasinski (grafix(AT)csl.pl), Nov 16 2006