A104819 Numbers with distinct digits appearing in partition of decimal expansion of Pi.

314, 15926, 53, 5897, 932, 38462, 643, 38, 327950, 28, 84197, 1693, 9, 937510, 5820974, 94, 4592307816, 40628, 62089, 9862, 8034, 82534, 21, 1706, 798214, 80, 865132, 82306, 6470938, 4, 46095, 50, 582, 2317, 253, 5940812, 84, 81, 1, 1745028

Offset: 1

Author

Zak Seidov, Mar 27 2005

Keywords

• nonn
• base

Comments

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,... Leading zero allowed as at first in a(42)= 193852 from {0,1,9,3,8,5,2}.

Crossrefs

Cf. A104807, A104820.

Extensions

Comment from Jani Melik, Nov 13 2009