a(n) = 2*a(n-1) - a(n-2) + 2*a(n-3) - 4*a(n-4) + 4*a(n-5) - 4*a(n-6) + 4*a(n-7) - 4*a(n-8) + 4*a(n-9) - 3*a(n-10) + 2*a(n-11) - 3*a(n-12) + 2*a(n-13) for n >= 16, with initial values as shown.
A288511
a(n) = 2*a(n-1) - a(n-2) + 2*a(n-3) - 4*a(n-4) + 4*a(n-5) - 4*a(n-6) + 4*a(n-7) - 4*a(n-8) + 4*a(n-9) - 3*a(n-10) + 2*a(n-11) - 3*a(n-12) + 2*a(n-13) for n >= 16, with initial values as shown.
Terms
- a(0) =2a(1) =4a(2) =5a(3) =7a(4) =9a(5) =12a(6) =17a(7) =23a(8) =33a(9) =48a(10) =70a(11) =103a(12) =152a(13) =228a(14) =343a(15) =515a(16) =779a(17) =1180a(18) =1787a(19) =2715a(20) =4124a(21) =6264a(22) =9526a(23) =14483a(24) =22025a(25) =33504a(26) =50957a(27) =77519a(28) =117929a(29) =179396
External references
- oeis: A288511