a(0) = 0; for n >= 0, a(n+1) = a(n) + x where x is the smallest nonnegative number that is not equal to a(i) +- a(k) for any 0 <= i <= n, 0 <= k <= n.
A047699
a(0) = 0; for n >= 0, a(n+1) = a(n) + x where x is the smallest nonnegative number that is not equal to a(i) +- a(k) for any 0 <= i <= n, 0 <= k <= n.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =10a(4) =17a(5) =29a(6) =44a(7) =66a(8) =89a(9) =113a(10) =139a(11) =170a(12) =202a(13) =237a(14) =273a(15) =311a(16) =352a(17) =394a(18) =445a(19) =497a(20) =550a(21) =605a(22) =664a(23) =728a(24) =796a(25) =871a(26) =948a(27) =1026a(28) =1106a(29) =1188
External references
- oeis: A047699