0,1

The next term is greater than 10^7

David G. Andersen, The Pi-Search Page.

5 is a term because the 5th single digit in Pi is 5. Number 9696 is a term because the 9696th quadruplet in the decimal digits of Pi is 9696. (cf. 3.14159...)

PithyNumbersWith3[m_] := Module[{cc = m(10^m)+m, sol, aa}, sol = Partition[RealDigits[Pi, 10, cc] // First, m]; Do[aa = FromDigits[sol[[i]]]; If[aa==i, Print[{i, aa}]], {i, Length[sol]}]; ] Example: PithyNumbersWith3[5] produces all 5-digit Pithy numbers

Cf. A109513, A057679, A057680.

Sequence in context: A067816 A076629 A052027 this_sequence A022918 A058051 A089989

Adjacent sequences: A109511 A109512 A109513 this_sequence A109515 A109516 A109517

base,more,nonn

Colin Rose (colin(AT)tri.org.au), Jul 01 2005