a(1) = 1, a(2) = 3; for n >= 3, a(n) is smallest number that is uniquely of the form a(j) + a(k) with 1 <= j < k < n.
A002859
a(1) = 1, a(2) = 3; for n >= 3, a(n) is smallest number that is uniquely of the form a(j) + a(k) with 1 <= j < k < n.
Terms
- a(0) =1a(1) =3a(2) =4a(3) =5a(4) =6a(5) =8a(6) =10a(7) =12a(8) =17a(9) =21a(10) =23a(11) =28a(12) =32a(13) =34a(14) =39a(15) =43a(16) =48a(17) =52a(18) =54a(19) =59a(20) =63a(21) =68a(22) =72a(23) =74a(24) =79a(25) =83a(26) =98a(27) =99a(28) =101a(29) =110
External references
- oeis: A002859