A067903 Primes of the form floor((10/9)^k).
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 67, 83, 103, 127, 157, 239, 1163, 13127, 78713, 97177, 225749, 1218277, 1353641, 3144587, 4792847, 753274331, 27083690849, 38902247855599, 14203460502855187, 630469131840565313, 7903939395078324527, 815029233346016629931
Offset: 1
Keywords
Links
- Charles R Greathouse IV, Table of n, a(n) for n = 1..73
Programs
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PARI
v=[]; for(k=2, 3000, if(ispseudoprime(t=floor((10/9)^k)), v=concat(v, t))); v \\ Charles R Greathouse IV, Feb 17 2011; adapted to PARI in A067904 by Georg Fischer, Jul 15 2022
Formula
127 is in the sequence because floor((10/9)^46) = 127.