a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k=[ (n+1)/2 ], s = (natural numbers >= 2), t = (natural numbers >= 3).
A024306
a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k=[ (n+1)/2 ], s = (natural numbers >= 2), t = (natural numbers >= 3).
Terms
- a(0) =6a(1) =8a(2) =22a(3) =27a(4) =52a(5) =61a(6) =100a(7) =114a(8) =170a(9) =190a(10) =266a(11) =293a(12) =392a(13) =427a(14) =552a(15) =596a(16) =750a(17) =804a(18) =990a(19) =1055a(20) =1276a(21) =1353a(22) =1612a(23) =1702a(24) =2002a(25) =2106a(26) =2450a(27) =2569a(28) =2960a(29) =3095
External references
- oeis: A024306