Number of length 1+6 0..n arrays with every seven consecutive terms having five times the sum of some two elements equal to two times the sum of the remaining five.
A249256
Number of length 1+6 0..n arrays with every seven consecutive terms having five times the sum of some two elements equal to two times the sum of the remaining five.
Terms
- a(0) =2a(1) =395a(2) =2048a(3) =10673a(4) =37442a(5) =108563a(6) =270404a(7) =609527a(8) =1237610a(9) =2376889a(10) =4234788a(11) =7276359a(12) =11852610a(13) =18815693a(14) =28658380a(15) =42880029a(16) =62083718a(17) =88666639a(18) =123361020a(19) =169804397a(20) =228699934a(21) =305499203a(22) =400668852a(23) =521940563a(24) =669511918a(25) =853960505
External references
- oeis: A249256