Number of (n+3) X 10 0..3 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.

A186597

Number of (n+3) X 10 0..3 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.

Terms

    a(0) =71095231a(1) =1126074a(2) =1889853a(3) =5711805a(4) =12563805a(5) =17002221a(6) =17395749a(7) =17856813a(8) =20158773a(9) =23363757a(10) =27162237a(11) =33026037a(12) =58823757a(13) =91003557a(14) =125475693a(15) =167526981a(16) =305320872a(17) =471875955a(18) =656703486a(19) =881859873a(20) =1471637229a(21) =2244237561

External references