1,2

A probability argument suggests that this sequence may be finite.

a(1) = 1/1 =1; a(2) = 12/(1+2) = 4; a(3) = 12345/(1+2+3+4+5).

Cf. A067116, A072723, A072724.

Adjacent sequences: A072722 A072723 A072724 this_sequence A072726 A072727 A072728

Sequence in context: A007725 A102195 A114766 this_sequence A113896 A006030 A087365

base,nonn,bref

Henry Bottomley (se16(AT)btinternet.com), Jul 06 2002