A014419 Write n in base of Catalan numbers, then interpret as if written in base 3.

0, 1, 3, 4, 6, 9, 10, 12, 13, 15, 18, 19, 21, 22, 27, 28, 30, 31, 33, 36, 37, 39, 40, 42, 45, 46, 48, 49, 54, 55, 57, 58, 60, 63, 64, 66, 67, 69, 72, 73, 75, 76, 81, 82, 84, 85, 87, 90, 91, 93, 94, 96, 99, 100, 102, 103, 108, 109, 111, 112, 114, 117, 118, 120

Offset: 0

Author

Olivier Gérard

Keywords

• nonn
• easy

Crossrefs

Cf. A014418.