A159911 Prime times: primes of the form HMM with primes H, MM, 0<H<24, 0<MM<60.

211, 223, 229, 241, 307, 311, 313, 317, 331, 337, 347, 353, 359, 503, 523, 541, 547, 719, 743, 1103, 1117, 1123, 1129, 1153, 1303, 1307, 1319, 1723, 1741, 1747, 1753, 1759, 1907, 1913, 1931, 2311, 2341, 2347

Offset

1,1

Comments

Suggested by E. Angelini, cf. link.

Links

Table of n, a(n) for n=1..38.

E. Angelini, in "Les membres de ce groupe forment un nombre premier", April 30, 2009.

Mathematica

Select[Flatten[Table[FromDigits[Join[IntegerDigits[h], PadLeft[ IntegerDigits[ m], 2]]], {h, Prime[Range[9]]}, {m, Prime[Range[ 17]]}]], PrimeQ] (* Harvey P. Dale, Mar 27 2022 *)

Prog

(PARI) forprime( h=0, 24, forprime( m=0, 60, isprime(100*h+m) & print1(100*h+m, ", ")))

Crossrefs

See also A050246 and A229106, where H and MM (and SS) do not need to be prime.

Sequence in context: A136601 A108406 A051268 * A319141 A133959 A133960

Adjacent sequences: A159908 A159909 A159910 * A159912 A159913 A159914

Keyword

base,dumb,easy,fini,full,nonn

Author

M. F. Hasler, May 01 2009

Status

approved