The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A198177 10-digit primes found in the decimal expansion of the Golden Ratio phi, in the order of occurrence. 31
 1772030917, 4189391137, 6222353693, 7931800607, 5959395829, 5829056383, 3832266131, 6131992829, 6892501711, 9250171169, 1043216269, 3136144381, 7587012203, 7954454749, 8509874339, 4487706647, 1240076521, 7780531531, 5315317141, 1704666599, 7046665991 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Leading zeros are not permitted, so each term is 10 digits in length. The sequence A103752 has erroneously the same definition; the actual definition of the terms is unknown. - M. F. Hasler, Nov 01 2014 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 MATHEMATICA With[{len=10}, Select[FromDigits/@Partition[RealDigits[GoldenRatio, 10, 1000][[1]], len, 1], IntegerLength[#]==len&&PrimeQ[#]&]] PROG (PARI) default(realprecision, N=1000); m=10^10; phi=sqrt(5/4)+.5; for(k=9, N, isprime(phi\.1^k%m)||next; (p=phi\.1^k%m)>10^9&&print1(p", ")) \\ M. F. Hasler, Oct 31 2014 CROSSREFS Cf. A103773, A103789, A103793, A103808, A103809, A103810, A103811, A103812; A103752. See also, for e: A104843, A104844, A104845, A104846, A104847, A104848, A104849, A104850, A104851; for Pi: A198175, A198170, A104824, A104825, A104826, A198171, A198172, A198173, A198174; for sqrt(2): A198162, A198163, A198164, A198165, A198166, A198167, A198168, A198169, A198161; for the Euler-Mascheroni constant gamma: A198776, A198777, A198778, A198779, A198780, A198781, A198782, A198783, A198784. Sequence in context: A258423 A174762 A147769 * A129616 A105006 A318788 Adjacent sequences:  A198174 A198175 A198176 * A198178 A198179 A198180 KEYWORD nonn,base AUTHOR Harvey P. Dale, Oct 21 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 7 20:36 EDT 2021. Contains 343652 sequences. (Running on oeis4.)