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A268040
Array y AND NOT x, read by antidiagonals.
2
0, 0, 1, 0, 0, 2, 0, 1, 2, 3, 0, 0, 0, 2, 4, 0, 1, 0, 1, 4, 5, 0, 0, 2, 0, 4, 4, 6, 0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 2, 0, 4, 4, 6, 8, 0, 1, 0, 1, 0, 1, 4, 5, 8, 9, 0, 0, 2, 0, 0, 0, 2, 4, 8, 8, 10, 0, 1, 2, 3, 0, 1, 2, 3, 8, 9, 10, 11, 0, 0, 0, 2, 4, 0, 0, 2, 8, 8, 8, 10, 12
OFFSET
0,6
COMMENTS
This is one of eight bitwise truth tables subject to the condition that (0, 0) implies 0.
# -------|---------|---------|---------|---------
# (0, 0) | 0 | 0 | 0 | 0
# (0, 1) | 0 | 0 | 0 | 0
# (1, 0) | 0 | 0 | 1 | 1
# (1, 1) | 0 | 1 | 0 | 1
#
# -------|---------|---------|---------|---------
# (0, 0) | 0 | 0 | 0 | 0
# (0, 1) | 1 | 1 | 1 | 1
# (1, 0) | 0 | 0 | 1 | 1
# (1, 1) | 0 | 1 | 0 | 1
Transpose of the array in A099026. - Michel Marcus, Jan 25 2016
EXAMPLE
The array begins:
0, 1, 2, 3, 4, 5, ...
0, 0, 2, 2, 4, 4, ...
0, 1, 0, 1, 4, 5, ...
0, 0, 0, 0, 4, 4, ...
0, 1, 2, 3, 0, 1, ...
0, 0, 2, 2, 0, 0, ...
...
PROG
(PARI) T(x, y)=bitnegimply(y, x) \\ Michel Marcus, Jan 25 2016
KEYWORD
nonn,tabl,look
AUTHOR
Peter Kagey, Jan 24 2016
STATUS
approved