A109514 - OEIS

A109514

Let n be an integer consisting of m digits. Then n is a Pithy number if the n-th m-tuple in the decimal digits of Pi is string n.

5, 9696, 19781, 199898 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,1`
	COMMENTS	`The next term is greater than 10^7` `A near-miss '02805451' occurs at position 2805451. - Vaclav Kotesovec, Feb 19 2020`
	LINKS	`Table of n, a(n) for n=0..3.` `David G. Andersen, The Pi-Search Page.`
	EXAMPLE	`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...)`
	MATHEMATICA	`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`
	CROSSREFS	`Cf. A109513, A057679, A057680.` `Sequence in context: A067816 A076629 A052027 * A022918 A212617 A160741` `Adjacent sequences: A109511 A109512 A109513 * A109515 A109516 A109517`
	KEYWORD	`base,more,nonn`
	AUTHOR	`Colin Rose, Jul 01 2005`
	STATUS	`approved`

Last modified May 20 23:05 EDT 2022. Contains 353886 sequences. (Running on oeis4.)