a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4) + a(n-5) with a(1) = 1, a(2) = 2, a(3) = 4, a(4) = 8, and a(5) = 15.

A385107

a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4) + a(n-5) with a(1) = 1, a(2) = 2, a(3) = 4, a(4) = 8, and a(5) = 15.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =15a(5) =27a(6) =48a(7) =86a(8) =157a(9) =292a(10) =549a(11) =1034a(12) =1939a(13) =3613a(14) =6697a(15) =12381a(16) =22889a(17) =42384a(18) =78642a(19) =146136a(20) =271720a(21) =505137a(22) =938514a(23) =1742620a(24) =3234360a(25) =6002359a(26) =11140379a(27) =20680696a(28) =38398206a(29) =71302165

External references