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A026140 a(n) = (1/2)*(s(n) - 1), where s = A026139. 1
0, 1, 3, 4, 7, 9, 10, 12, 13, 16, 19, 21, 22, 25, 27, 28, 30, 31, 34, 36, 37, 39, 40, 43, 46, 48, 49, 52, 55, 57, 58, 61, 63, 64, 66, 67, 70, 73, 75, 76, 79, 81, 82, 84, 85, 88, 90, 91, 93, 94, 97, 100, 102, 103, 106, 108, 109, 111, 112, 115, 117, 118 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..62.

CROSSREFS

Sequence in context: A300061 A300789 A026225 * A233010 A263488 A059010

Adjacent sequences:  A026137 A026138 A026139 * A026141 A026142 A026143

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 18 01:03 EST 2018. Contains 317279 sequences. (Running on oeis4.)