A224642 T(n,k) = Number of (n+6) X (k+6) 0..2 matrices with each 7 X 7 subblock idempotent.

145121216, 10906923, 10906923, 6162817, 1268962, 6162817, 4750292, 1477939, 1477939, 4750292, 4617228, 1642077, 1800748, 1642077, 4617228, 4971859, 1727928, 1978918, 1978918, 1727928, 4971859, 5047936, 1767017, 2061018, 2157776, 2061018

Offset

1,1

Comments

Table starts

.145121216.10906923.6162817.4750292.4617228.4971859.5047936.5029695.5708639

..10906923..1268962.1477939.1642077.1727928.1767017.1778834.1780319.2325778

...6162817..1477939.1800748.1978918.2061018.2097855.2114887.2124211.2665911

...4750292..1642077.1978918.2157776.2240464.2277483.2294940.2304404.2847472

...4617228..1727928.2061018.2240464.2323256.2360402.2377907

...4971859..1767017.2097855.2277483.2360402.2397590

...5047936..1778834.2114887.2294940.2377907

...5029695..1780319.2124211.2304404

...5708639..2325778.2665911

...7589727..3228402

Links

R. H. Hardin, Table of n, a(n) for n = 1..70

Example

Some solutions for n=2, k=4
..1..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..0
..1..0..0..0..0..0..0..0..0..2....1..0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0..0..0
..1..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..1
..2..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..1
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0..1
..2..0..0..0..0..0..0..0..0..1....1..0..0..0..0..0..0..0..0..1
..1..0..0..0..0..0..0..0..0..1....2..0..0..0..0..0..0..0..0..1

Crossrefs

Sequence in context: A186174 A224637 A224638 * A185855 A335399 A226970

Adjacent sequences: A224639 A224640 A224641 * A224643 A224644 A224645

Keyword

nonn,tabl

Author

R. H. Hardin, Apr 13 2013

Status

approved