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Search: id:A151496
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| A151496 |
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Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 0), (-1, 1), (0, -1), (0, 1), (1, -1), (1, 0), (1, 1)} |
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+0
1
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| 1, 1, 7, 27, 160, 870, 5345, 32865, 211512, 1380372, 9214548, 62327958, 427516056, 2963478804, 20745401391, 146427786219, 1041261685464, 7453015732448, 53661092431232, 388397497629284, 2824677704718896, 20632192727484936, 151301370605585252, 1113568687159297278, 8223216946375477960
(list; graph; listen)
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