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A198175 Primes from merging of 2 successive digits in decimal expansion of Pi. 23
31, 41, 59, 53, 89, 97, 79, 23, 43, 83, 79, 41, 19, 97, 71, 37, 97, 59, 23, 89, 53, 11, 17, 67, 79, 13, 23, 47, 23, 31, 17, 53, 59, 11, 11, 17, 41, 19, 11, 59, 29, 89, 19, 97, 59, 61, 47, 23, 37, 67, 83, 31, 71, 19, 23, 61, 43, 13, 41, 73, 37, 31, 17, 29, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Leading zeros are not permitted, so each term is 2 digits in length.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..2000

MATHEMATICA

With[{len=2}, Select[FromDigits/@Partition[RealDigits[Pi, 10, 1000][[1]], len, 1], IntegerLength[#]==len&&PrimeQ[#]&]]

CROSSREFS

Cf. A103773, A103789, A103793, A103808, A103809, A103810, A103811, A103812, A104824, A104825, A104826, A104843, A104844, A104845, A104846, A104847, A104848, A104849, A104850, A198161, A198162, A198163, A198164, A198165, A198166, A198167, A198168, A198169, A198170, A198171, A198172, A198173, A198174, A104851, A198177.

Sequence in context: A103490 A105320 A104822 * A238397 A087054 A245650

Adjacent sequences:  A198172 A198173 A198174 * A198176 A198177 A198178

KEYWORD

nonn,base

AUTHOR

Harvey P. Dale, Oct 21 2011

STATUS

approved

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Last modified April 21 13:48 EDT 2021. Contains 343154 sequences. (Running on oeis4.)