A354957 - OEIS

A354957

Coordination sequence for the Manhattan hexagonal lattice with respect to the origin.

1, 3, 7, 14, 21, 25, 35, 35, 49, 45, 63, 55, 77, 65, 91, 75, 105, 85, 119, 95, 133, 105, 147, 115, 161, 125, 175, 135, 189, 145, 203, 155, 217, 165, 231, 175, 245, 185, 259, 195, 273, 205, 287, 215, 301, 225, 315, 235, 329, 245, 343, 255, 357, 265, 371, 275

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OFFSET

0,2

COMMENTS

In the Manhattan hexagonal lattice, streets parallel to one of the 3 axis have alternating orientations:

Z Y

.---<---.

/ \ / \

v ^ ^ v

/ \ / \

.--->---O--->---. X

\ / \ /