A208078 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 0 1 0 vertically.
2, 4, 4, 6, 16, 6, 10, 36, 36, 9, 16, 100, 126, 81, 15, 26, 256, 510, 441, 225, 25, 42, 676, 1968, 2601, 1785, 625, 40, 68, 1764, 7722, 15129, 16065, 7225, 1600, 64, 110, 4624, 30114, 88209, 139605, 99225, 27880, 4096, 104, 178, 12100, 117708, 514089, 1228095
Offset: 1
Examples
Table starts ..2....4......6......10.......16.........26..........42............68 ..4...16.....36.....100......256........676........1764..........4624 ..6...36....126.....510.....1968.......7722.......30114........117708 ..9...81....441....2601....15129......88209......514089.......2996361 .15..225...1785...16065...139605....1228095....10751415......94313535 .25..625...7225...99225..1288225...17098225...224850025....2968615225 .40.1600..27880..572040.11204720..223058440..4412968520...87523832240 .64.4096.107584.3297856.97456384.2909955136.86610135616.2580469555456 ... Some solutions for n=4 k=3 ..0..1..0....0..1..1....1..0..0....0..1..0....1..0..0....1..1..1....0..1..1 ..1..0..1....1..1..0....1..1..0....0..1..1....0..1..1....1..0..1....1..1..0 ..1..0..1....1..0..1....1..1..1....1..1..1....0..1..1....1..1..1....1..1..0 ..0..1..1....0..1..1....1..1..1....1..0..0....1..1..1....0..1..1....0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..716