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A136320 Terms of A047241 swapped in pairs. 0
3, 1, 9, 7, 15, 13, 21, 19, 27, 25, 33, 31, 39, 37, 45, 43, 51, 49, 57, 55, 63, 61, 69, 67, 75, 73, 81, 79, 87, 85, 93, 91, 99, 97, 105, 103, 111, 109, 117, 115, 123, 121, 129, 127, 135, 133, 141, 139, 147, 145, 153, 151, 159, 157, 165, 163, 171, 169, 177, 175, 183 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..60.

FORMULA

a(n) = 6*n - a(n-1) - 2 (with a(0)=3). - Vincenzo Librandi, Nov 24 2010

CROSSREFS

Sequence in context: A245789 A210395 A019770 * A201840 A088640 A114195

Adjacent sequences:  A136317 A136318 A136319 * A136321 A136322 A136323

KEYWORD

nonn

AUTHOR

Paul Curtz, Mar 25 2008

STATUS

approved

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Last modified June 6 14:04 EDT 2020. Contains 334827 sequences. (Running on oeis4.)