A186776 - OEIS

A186776

Stanley Sequence S(0,2).

0, 2, 3, 5, 9, 11, 12, 14, 27, 29, 30, 32, 36, 38, 39, 41, 81, 83, 84, 86, 90, 92, 93, 95, 108, 110, 111, 113, 117, 119, 120, 122, 243, 245, 246, 248, 252, 254, 255, 257, 270, 272, 273, 275, 279, 281, 282, 284, 324, 326, 327, 329, 333, 335, 336, 338, 351, 353, 354, 356, 360, 362, 363, 365, 729, 731, 732, 734, 738, 740

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OFFSET

1,2

COMMENTS

See A185256.

In ternary these numbers have 0's and 1's everywhere, except the last digit is either 0 or 2. [Tanya Khovanova, Nov 16 2013]

a(n) = A005836(n) + A000035(n). [Tanya Khovanova, Nov 16 2013]

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..2000

FORMULA

Equals A004793(n)-1, also A033160(n)-2, also A033163(n)-3. Note that A004793 has a recurrence.

MATHEMATICA