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A354961
Coordination sequence for the Manhattan cubic lattice.
1
1, 3, 9, 21, 42, 67, 109, 145, 207, 255, 337, 397, 499, 571, 693, 777, 919, 1015, 1177, 1285, 1467, 1587, 1789, 1921, 2143, 2287, 2529, 2685, 2947, 3115, 3397, 3577, 3879, 4071, 4393, 4597, 4939, 5155, 5517, 5745, 6127, 6367, 6769, 7021, 7443, 7707, 8149, 8425
OFFSET
0,2
COMMENTS
In the Manhattan cubic lattice, streets parallel to one of the 3 axis have alternating orientations:
.---->----.
/| /|
v | ^ |
/ v / ^
.----<----. |
| | | |
| .----<|---.
^ / v /
| ^ | v
|/ |/
O---->----.
PROG
(C#) See Links section.
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémy Sigrist, Jun 13 2022
STATUS
approved