1,1

Start with decimal expansion of pi: 3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2,6,4,3... Part the sequence to the sections with distinct digits: s={3,1,4},{1,5,9,2,6},{5,3},{5,8,9,7},{9,3,2},{3,8,4,6,2},{6,4,3},... Then A104819(n) = number from digits of s(n): 314,15926,53,5897,932,38462,643,...

Cf. A104807, A104820.

Sequence in context: A107117 A050818 A050807 this_sequence A076648 A076773 A114807

Adjacent sequences: A104816 A104817 A104818 this_sequence A104820 A104821 A104822

nonn,base

Zak Seidov (zakseidov(AT)yahoo.com), Mar 27 2005