Number of length 5+4 0..n 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.
A248992
Number of length 5+4 0..n 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) =204a(3) =585a(4) =3014a(5) =12937a(6) =32094a(7) =70037a(8) =123076a(9) =245471a(10) =426828a(11) =726053a(12) =1117244a(13) =1682603a(14) =2516548a(15) =3710543a(16) =5180912a(17) =7091467a(18) =9311842a(19) =12467375a(20) =16165280a(21) =20786881a(22) =26043958a(23) =32368635a(24) =39971764a(25) =49206501a(26) =59436930a(27) =71456833a(28) =84599994
External references
- oeis: A248992