A022433 a(n) = c(n-1) + c(n-3) where c is the sequence of numbers not in a.

1, 3, 5, 8, 11, 15, 17, 21, 23, 26, 29, 32, 35, 38, 41, 44, 47, 51, 53, 57, 59, 63, 65, 69, 71, 75, 77, 81, 83, 87, 89, 93, 95, 98, 101, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134

Offset

0,2

Links

Ivan Neretin, Table of n, a(n) for n = 0..10000

Mathematica

Fold[Append[#1, Plus @@ Complement[Range[Max@#1 + 3], #1][[{#2, #2 + 2}]]] &, {1, 3, 5}, Range[43]] (* Ivan Neretin, Mar 30 2017 *)

Crossrefs

Cf. A022424 and references therein.

Sequence in context: A348450 A360628 A260273 * A284442 A335860 A207038

Adjacent sequences: A022430 A022431 A022432 * A022434 A022435 A022436

Keyword

nonn

Author

Clark Kimberling

Status

approved