Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%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