a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = floor( n/2 ), s = natural numbers >= 2, t = natural numbers >= 3.
A024869
a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = floor( n/2 ), s = natural numbers >= 2, t = natural numbers >= 3.
Terms
- a(0) =8a(1) =10a(2) =27a(3) =32a(4) =61a(5) =70a(6) =114a(7) =128a(8) =190a(9) =210a(10) =293a(11) =320a(12) =427a(13) =462a(14) =596a(15) =640a(16) =804a(17) =858a(18) =1055a(19) =1120a(20) =1353a(21) =1430a(22) =1702a(23) =1792a(24) =2106a(25) =2210a(26) =2569a(27) =2688a(28) =3095a(29) =3230
External references
- oeis: A024869