

A022442


a(n) = c(n) + c(n1) where c is the sequence of numbers not in a.


3



2, 4, 8, 11, 13, 16, 19, 22, 26, 29, 32, 35, 38, 41, 44, 47, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 98, 101, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,1


LINKS



FORMULA

For n>0, a(n)=b(n) with b(0)=0, b(2n) = b(n)+9n+3, b(2n+1) = b(n)+9n+62[n==0].  Ralf Stephan, Oct 23 2003


MATHEMATICA

Fold[Append[#1, Plus @@ Complement[Range[Max@#1 + 3], #1][[{#2 + 1, #2 + 2}]]] &, {2, 4}, Range[44]] (* Ivan Neretin, Mar 30 2017 *)


CROSSREFS

Cf. A022424 and references therein.


KEYWORD

nonn,easy


AUTHOR



STATUS

approved



