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 A155067 First differences of A031368. 2
 3, 6, 6, 6, 8, 10, 6, 12, 8, 6, 10, 14, 6, 6, 18, 10, 12, 8, 10, 12, 12, 6, 14, 16, 6, 8, 16, 12, 8, 6, 24, 6, 18, 16, 6, 14, 12, 10, 12, 18, 12, 8, 10, 12, 6, 20, 12, 10, 14, 24, 16, 8, 16, 12, 8, 10, 14, 12, 10, 8, 16, 14, 18, 18, 12, 12, 10, 12, 24, 14, 12, 6, 24, 6, 18, 6, 24, 12, 18, 10 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS All but the first term are even. LINKS FORMULA a(n)= A031368(n+1)-A031368(n). a(n)= A001223(2n-1)+A001223(2n). - R. J. Mathar, Feb 27 2009 a(n)= A031131(2n-1). - R. J. Mathar, Feb 27 2009 CROSSREFS Cf. A110854. Sequence in context: A113737 A292165 A040006 * A094011 A295558 A295559 Adjacent sequences:  A155064 A155065 A155066 * A155068 A155069 A155070 KEYWORD nonn,easy AUTHOR Paul Curtz, Jan 19 2009 EXTENSIONS Edited and extended by R. J. Mathar, Feb 27 2009 STATUS approved

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Last modified September 15 16:33 EDT 2019. Contains 327078 sequences. (Running on oeis4.)