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A052175
Triangle of numbers arising in enumeration of walks on square lattice.
1
1, 2, 2, 4, 10, 8, 10, 34, 16, 70, 98, 32, 70, 308, 258, 64, 588, 1092, 642, 128, 588, 3024, 3414, 1538, 256, 5544, 12276, 9834, 3586, 512, 5544, 31680, 43230, 26752, 8194, 1024, 56628, 141570, 138424, 69784, 18434, 2048
OFFSET
0,2
LINKS
R. K. Guy, Catwalks, sandsteps and Pascal pyramids, J. Integer Sequences, Vol. 3 (2000), Article #00.1.6.
EXAMPLE
1; 2; 2,4; 10,8; 10,34,16; 70,98,32; 70,308,258,64; ...
CROSSREFS
Essentially same as A052176.
Sequence in context: A162508 A199400 A056919 * A102623 A216695 A320069
KEYWORD
nonn,tabf,easy,nice
AUTHOR
N. J. A. Sloane, Jan 26 2000
STATUS
approved