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A052175
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Triangle of numbers arising in enumeration of walks on square lattice.
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1
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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
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| R. K. Guy, Catwalks, Sandsteps and Pascal Pyramids, J. Integer Seqs., Vol. 3 (2000), #00.1.6
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EXAMPLE
| 1; 2; 2,4; 10,8; 10,34,16; 70,98,32; 70,308,258,64; ...
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CROSSREFS
| Essentially same as A052176.
Sequence in context: A162508 A199400 A056919 * A102623 A002082 A005304
Adjacent sequences: A052172 A052173 A052174 * A052176 A052177 A052178
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KEYWORD
| nonn,tabf,easy,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2000
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