OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Sort[Plus @@@ Subsets[3^Range[0, 10], {2}]] (* Amiram Eldar, Jul 13 2022 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
Offset corrected by Amiram Eldar, Jul 13 2022
STATUS
approved