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A074901 Increasingly larger bases required for composite numbers to become prime by base reversal (A075243). 1

%I #6 Jun 04 2021 03:16:14

%S 0,2,4,6,8,9,12,26,27,34,38,48,54,60,96,150,168,180,420,438,462,468,

%T 522,540,570,828,1320,1782,2130,2142,2280,2370,2448,2700,2760,2790,

%U 2808,2922,2952,2982,3012,3402,3570,3582,3972,4218,4860,5148

%N Increasingly larger bases required for composite numbers to become prime by base reversal (A075243).

%Y Cf. A075243.

%K nonn,base,hard,more

%O 1,2

%A _Robert G. Wilson v_, Sep 16 2002

%E More terms from _Amiram Eldar_, Jun 04 2021

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)