A224590 Number of (n+7)X8 0..1 matrices with each 8X8 subblock idempotent

65108492, 1770078, 1089765, 951062, 891884, 877647, 861932, 884782, 877730, 938003, 1024137, 1155186, 1312331, 1585986, 1933893, 2408764, 3002302, 3788718, 4754615, 5977345, 7449166, 9332836, 11688827, 14683115, 18522156, 23570034

Offset

1,1

Comments

Column 1 of A224597

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 2*a(n-1) -3*a(n-2) +4*a(n-3) -5*a(n-4) +6*a(n-5) -6*a(n-6) +6*a(n-7) -4*a(n-8) +3*a(n-9) -2*a(n-11) +6*a(n-12) -8*a(n-13) +11*a(n-14) -12*a(n-15) +13*a(n-16) -13*a(n-17) +11*a(n-18) -10*a(n-19) +6*a(n-20) -5*a(n-21) +a(n-23) -5*a(n-24) +5*a(n-25) -7*a(n-26) +7*a(n-27) -7*a(n-28) +7*a(n-29) -5*a(n-30) +5*a(n-31) -3*a(n-32) +3*a(n-33) -a(n-34) +a(n-35) for n>54

Example

Some solutions for n=4
..1..0..0..1..0..0..0..0....1..0..0..0..0..0..0..0....0..0..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....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....0..1..0..1..0..0..1..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..1..1..0..0..1..1..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....0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0
..0..1..1..0..0..1..1..0....0..0..0..0..1..0..0..0....0..1..0..1..0..0..1..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....0..0..0..0..1..0..0..0....0..1..0..1..0..0..1..0
..1..0..0..0..0..0..1..1....0..0..0..0..1..0..0..0....0..0..1..0..0..1..0..1

Crossrefs

Sequence in context: A183671 A237339 A224589 * A224597 A204498 A103789

Adjacent sequences: A224587 A224588 A224589 * A224591 A224592 A224593

Keyword

nonn

Author

R. H. Hardin Apr 11 2013

Status

approved