1/4 the number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock having distinct edge sums.
A209378
1/4 the number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock having distinct edge sums.
Terms
- a(0) =32a(1) =80a(2) =156a(3) =512a(4) =1076a(5) =4004a(6) =8612a(7) =33716a(8) =73028a(9) =291908a(10) =633732a(11) =2555588a(12) =5552900a(13) =22478852a(14) =48859652a(15) =198127364a(16) =430707716a(17) =1747864580a(18) =3799906308a(19) =15425772548a(20) =33536978948a(21) =136164892676a(22) =296038014980
External references
- oeis: A209378