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A137708 Secondary Lower Wythoff Sequence. 2
1, 2, 5, 6, 7, 8, 11, 12, 15, 16, 17, 18, 21, 22, 23, 24, 27, 28, 31, 32, 33, 34, 37, 38, 41, 42, 43, 44, 47, 48, 49, 50, 53, 54, 57, 58, 69, 60, 63, 64, 65, 66, 69, 70, 73, 74, 75, 76, 79, 80, 83, 84, 85, 86, 89, 90, 91, 92, 95, 96, 99, 100, 101, 102, 105, 106, 109, 110, 111 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

This sequence is the ordered union of odd numbered columns of the Wythoff secondary array, A137707. See A137707 for complementary equations of which this sequence is a solution.

LINKS

Table of n, a(n) for n=1..69.

FORMULA

a(2n)=2*A000201(n)=a(2n-1)+1; A000201 is the lower Wythoff sequence.

EXAMPLE

The lower Wythoff sequence begins with 1,3,4,6,8,9,...

Double these: 2,6,8,12,16,18...; subtract 1: 1,5,7,11,15,17;

Then merge: 1,2,5,6,7,8,11,12,15,16,17,18,...

CROSSREFS

Cf. A035513, A137709.

Sequence in context: A047269 A039027 A129816 * A122806 A122546 A258775

Adjacent sequences:  A137705 A137706 A137707 * A137709 A137710 A137711

KEYWORD

nonn

AUTHOR

Clark Kimberling, Feb 07 2008

STATUS

approved

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Last modified December 1 05:33 EST 2021. Contains 349426 sequences. (Running on oeis4.)