T(n,k)=Number of length n+4 0..k arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two.
A248987
T(n,k)=Number of length n+4 0..k arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two.
Terms
- a(0) =2a(1) =53a(2) =2a(3) =204a(4) =53a(5) =2a(6) =585a(7) =204a(8) =53a(9) =2a(10) =1326a(11) =585a(12) =204a(13) =53a(14) =2a(15) =2817a(16) =1654a(17) =585a(18) =204a(19) =53a(20) =2a(21) =5028a(22) =4137a(23) =2042a(24) =585a(25) =204a(26) =53a(27) =2a(28) =8789a(29) =7964
External references
- oeis: A248987