A235908 Number of (n+1)X(5+1) 0..2 arrays with the minimum plus the maximum unequal to the lower median plus the upper median in every 2X2 subblock

41344, 2707568, 181855488, 12495925760, 857962921984, 59328151603200, 4091230986428416, 283020673044676608, 19540542590093524992, 1351372046965113815040, 93347483400967593000960

Offset

1,1

Comments

Column 5 of A235911

Links

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

Formula

Empirical: a(n) = 26*a(n-1) +8176*a(n-2) -159648*a(n-3) -25251520*a(n-4) +409789184*a(n-5) +40387379712*a(n-6) -560043470848*a(n-7) -38243900612608*a(n-8) +453146168991744*a(n-9) +22884002414231552*a(n-10) -229438573635043328*a(n-11) -8897444606279942144*a(n-12) +74513276967361445888*a(n-13) +2250427842190196604928*a(n-14) -15517982447269643812864*a(n-15) -360930672944941201620992*a(n-16) +2017020749399787514626048*a(n-17) +34457430274833020381822976*a(n-18) -153477726886511719487635456*a(n-19) -1712696084395508983184490496*a(n-20) +6061647427902798231574151168*a(n-21) +33305788651378989689483558912*a(n-22) -106137642247644940595504349184*a(n-23) -294928529650434846531795288064*a(n-24) +929172800312758643258634010624*a(n-25) +1221540605960740641954653536256*a(n-26) -4294823659160596636581371052032*a(n-27) -1816618812600961577469408706560*a(n-28) +10045162121297640464223572066304*a(n-29) -1633688989885953439707011481600*a(n-30) -9367464471978621403690654760960*a(n-31) +5290800985400804622384494542848*a(n-32)

Example

Some solutions for n=1
..0..0..1..1..2..2....0..0..0..0..2..0....2..1..2..1..0..2....2..1..1..2..0..2
..2..0..2..1..1..0....1..0..1..0..1..0....2..0..2..2..2..2....1..1..2..2..2..1

Crossrefs

Sequence in context: A269738 A269737 A233714 * A128150 A236615 A202726

Adjacent sequences: A235905 A235906 A235907 * A235909 A235910 A235911

Keyword

nonn

Author

R. H. Hardin, Jan 16 2014

Status

approved