cp's OEIS Frontend

A104614 Write the natural numbers in base 11 in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.

%I A104614 #2 Mar 30 2012 17:31:12
%S A104614 1,3,6,10,1,1,8,1,2,3,5,0,4,5,10,7,7,8,1,0,1,0,1,1,2,1,1,5,1,1,8,1,1,
%T A104614 0,2,2,3,2,2,6,2,2,10,3,3,3,3,3,8,3,4,1,4,4,6,4,4,0,5,5,6,5,5,1,6,6,7,
%U A104614 6,7,2,7,7,8,8,8,4,8,8,0,9,9,8,9,10,4,10,10,2,1,5,0,0,0,1,9,0,1,0,2,2,7,1
%N A104614 Write the natural numbers in base 11 in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.
%C A104614 1
%C A104614 23
%C A104614 456
%C A104614 789A
%C A104614 10111
%C A104614 213141
%C A104614 5161718...
%t A104614 t = Flatten[ IntegerDigits[ Range[1850], 11]]; t[[Table[n(n + 1)/2, {n, 105}]]]
%Y A104614 Cf. A104606, A104607, A104608, A104609, A104610, A104611, A104612, A104613, A091425, A104615, A104616, A104617, A104618, A104619, A104620.
%K A104614 base,nonn
%O A104614 1,2
%A A104614 _Robert G. Wilson v_, Mar 16 2005