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A052176
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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, 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, 64, 0, 588, 0, 1092, 0, 642, 0, 128, 588, 0, 3024, 0, 3414, 0, 1538, 0, 256, 0, 5544, 0, 12276, 0, 9834, 0, 3586, 0, 512, 5544, 0, 31680, 0, 43230, 0, 26752, 0, 8194, 0
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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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; 0,2; 2,0,4; 0,10,0,8; 10,0,34,0,16; 0,70,0,98,0,32; ...
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CROSSREFS
| Essentially same as A052175.
Sequence in context: A138476 A131381 A112080 * A138092 A138090 A138093
Adjacent sequences: A052173 A052174 A052175 * A052177 A052178 A052179
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KEYWORD
| nonn,tabl,easy,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2000
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