%I A052176
%S A052176 1,0,2,2,0,4,0,10,0,8,10,0,34,0,16,0,70,0,98,0,32,70,0,308,0,258,0,
%T A052176 64,0,588,0,1092,0,642,0,128,588,0,3024,0,3414,0,1538,0,256,0,5544,
%U A052176 0,12276,0,9834,0,3586,0,512,5544,0,31680,0,43230,0,26752,0,8194,0
%N A052176 Triangle of numbers arising in enumeration of walks on square lattice.
%H A052176 R. K. Guy, Catwalks, Sandsteps and Pascal Pyramids, <a href="http://www.cs.uwaterloo.ca/
               journals/JIS/index.html">J. Integer Seqs., Vol. 3 (2000), #00.1.6</
               a>
%e A052176 1; 0,2; 2,0,4; 0,10,0,8; 10,0,34,0,16; 0,70,0,98,0,32; ...
%Y A052176 Essentially same as A052175.
%Y A052176 Sequence in context: A138476 A131381 A112080 this_sequence A138092 A138090 
               A138093
%Y A052176 Adjacent sequences: A052173 A052174 A052175 this_sequence A052177 A052178 
               A052179
%K A052176 nonn,tabl,easy,nice
%O A052176 0,3
%A A052176 N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2000