%I A051640
%S A051640 1,2,7,14,23,47,47,239,239,239,239,5927,13679,13679,13679,57119,159119,
%T A051640 500399,500399,1627919,2585519,3694397,7305479,17067599,41126399,
%U A051640 41126399,41126399,61483967,586370399,589188599,1278033119,1278033119
%N A051640 a(n) contains the digit b-1 in all bases b from 2 to n.
%e A051640 47 = 101111 (base 2), 1202 (base 3), 233 (base 4), 142 (base 5), 115 
               (base 6), 65 (base 7), 57 (base 8). Base 2 representation contains 
               digit 1, base 3 representation contains digit 2, base 4 representation 
               contains digit 3, etc., so a(8)=47.
%Y A051640 Sequence in context: A087324 A008865 A018392 this_sequence A119354 A088207 
               A102999
%Y A051640 Adjacent sequences: A051637 A051638 A051639 this_sequence A051641 A051642 
               A051643
%K A051640 base,nonn,nice
%O A051640 2,2
%A A051640 Jeff Burch (gburch(AT)erols.com), Jun 04 2000
%E A051640 More terms from Ulrich Schimke (UlrSchimke(AT)aol.com), Jun 12, 2000
%E A051640 Definition corrected by Frank Adams-Watters (FrankTAW(AT)Netscape.net), 
               Apr 10 2006