A198169 - OEIS

A198169

Primes from merging of 9 successive digits in decimal expansion of sqrt(2).

213562373, 488016887, 688724209, 807856967, 718753769, 376948073, 501384623, 470109559, 609552329, 292304843, 260362799, 396546331, 523950547, 877599617, 172983557, 220337531, 570113543, 160386899, 603868999, 782306849, 684929369, 861249497, 124949771

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OFFSET

1,1

COMMENTS

Leading zeros are not permitted, so each term is 9 digits in length.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

MATHEMATICA

With[{len=9}, Select[FromDigits/@Partition[RealDigits[Sqrt[2], 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, A198170, A198171, A198172, A198173, A198174, A198175, A104851, A198177.

Sequence in context: A359129 A064588 A202572 * A358343 A017288 A017396

Adjacent sequences: A198166 A198167 A198168 * A198170 A198171 A198172

KEYWORD

nonn,base

AUTHOR

Harvey P. Dale, Oct 21 2011

STATUS

approved