Number of (n+1)X(1+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
A236782
Number of (n+1)X(1+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock equal.
Terms
- a(0) =81a(1) =255a(2) =770a(3) =2475a(4) =7967a(5) =26320a(6) =87685a(7) =296341a(8) =1009386a(9) =3469327a(10) =11995679a(11) =41723704a(12) =145746621a(13) =511140805a(14) =1798008490a(15) =6341897735a(16) =22416736479a(17) =79385995448a(18) =281564936853a(19) =999990174053
External references
- oeis: A236782