%I A023811
%S A023811 0,1,5,27,194,1865,22875,342391,6053444,123456789,2853116705,
%T A023811 73686780563,2103299351334,65751519677857,2234152501943159,
%U A023811 81985529216486895,3231407272993502984,136146740744970718253
%N A023811 Largest metadrome (number with digits in strict ascending order) in base 
               n.
%C A023811 Also smallest zeroless pandigital number in base n. - Franklin T. Adams-Watters 
               (FrankTAW(AT)Netscape.net), Nov 15 2006
%C A023811 The smallest permutational number in A134640 in the n-positional system 
               - Artur Jasinski (grafix(AT)csl.pl), Nov 07 2007
%F A023811 Sum[ j (n)^(n-1-j), {j=1->n-1} ].
%F A023811 Conjecture: lim n->inf a(n)/a(n-1) - a(n-1)/a(n-2) = exp(1) - Gerald 
               McGarvey (Gerald.McGarvey(AT)comcast.net), Sep 26 2004
%F A023811 a(n) =(n^n-n^2+n-1)/(n-1)^2 - 1 = A058128(n)-1 = n*A060073(n)-1 - Henry 
               Bottomley (se16(AT)btinternet.com), Feb 21 2001.
%e A023811 a(5)=1234 base 5=125+50+15+4=194
%Y A023811 Cf. A058128, A060073, A049363, A051846.
%Y A023811 Sequence in context: A082425 A109963 A091101 this_sequence A126119 A105631 
               A167019
%Y A023811 Adjacent sequences: A023808 A023809 A023810 this_sequence A023812 A023813 
               A023814
%K A023811 nonn,easy,base
%O A023811 1,3
%A A023811 Olivier Gerard (olivier.gerard(AT)gmail.com)