This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A077326 #18 May 15 2025 08:24:04 %S A077326 1,11,10,102,1020,10010,101010,1009470,11741730,1001110110, %T A077326 10407767370,1000287585570,10293281928930,1001230315195110, %U A077326 13082761331670030,1004819888620217670,100015003602410826930,1922760350154212639070 %N A077326 Smallest number beginning with 1 and having exactly n distinct prime divisors. %C A077326 What are the values of n where a(n) differ from A106411(n)? So far only n=4 is such a value. - _Chai Wah Wu_, May 07 2025 %e A077326 a(0) = 1, a(5) = 10010 = 2*5*7*11*13. %Y A077326 Cf. A077327, A077328, A077329, A077330, A077331, A077332, A077333, A077334. %Y A077326 Cf. A106411-A106419, A106421-A106429. %K A077326 base,nonn %O A077326 0,2 %A A077326 _Amarnath Murthy_, Nov 04 2002 %E A077326 More terms from _Sascha Kurz_, Jan 04 2003 %E A077326 a(9)-a(10) from _Ray Chandler_, Apr 17 2005 %E A077326 More terms from _Ray Chandler_, May 02 2005