login
Smallest prime beginning with exactly n 7's.
4

%I #15 Sep 06 2023 06:57:29

%S 2,7,773,77711,77773,7777709,77777719,777777701,777777773,77777777717,

%T 777777777713,777777777773,7777777777771,777777777777719,

%U 777777777777773,77777777777777711,777777777777777737,7777777777777777793,77777777777777777729,77777777777777777771

%N Smallest prime beginning with exactly n 7's.

%H M. F. Hasler, <a href="/A065590/b065590.txt">Table of n, a(n) for n = 0..200</a>

%Y Cf. A037067, A065581, A065584 - A065592.

%K nonn,base

%O 0,1

%A _Robert G. Wilson v_, Nov 28 2001

%E Corrected by _Don Reble_, Jan 17 2007

%E Offset corrected by _Sean A. Irvine_, Sep 06 2023