Number of length 2+6 0..n arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four.
A249199
Number of length 2+6 0..n arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four.
Terms
- a(0) =250a(1) =4586a(2) =49730a(3) =290032a(4) =1249890a(5) =4264120a(6) =12523980a(7) =32265528a(8) =75291612a(9) =161899248a(10) =326111182a(11) =620196140a(12) =1126624828a(13) =1965081086a(14) =3308353438a(15) =5396340806a(16) =8563365532a(17) =13250164542a(18) =20059918926a(19) =29755741666a(20) =43364729550
External references
- oeis: A249199