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 A268723 Main diagonal of A268725: a(n) = A003188(A006068(n)^2), where A003188 is binary Gray code and A006068 is its inverse. 2
 0, 1, 13, 6, 41, 54, 24, 21, 145, 166, 216, 253, 96, 121, 69, 86, 545, 582, 664, 749, 864, 841, 949, 1014, 384, 433, 477, 486, 793, 278, 344, 357, 2113, 2182, 2328, 2509, 2656, 2793, 2901, 2998, 3456, 3537, 3901, 3366, 3641, 3798, 4056, 3973, 1536, 1633, 1709, 1734, 1801, 1910, 1944, 2037, 3313, 3174, 1112, 1053 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Table of n, a(n) for n = 0..8191 FORMULA a(n) = A003188(A000290(A006068(n))). PROG (Scheme) (define (A268723 n) (A003188 (A000290 (A006068 n)))) (Python) def A268723(n): k, m = n, n>>1 while m > 0: k ^= m m >>= 1 return (a:=k**2)^ a>>1 # Chai Wah Wu, Jun 30 2022 CROSSREFS Cf. A000290, A003188, A006068. Main diagonal of array A268725. Sequence in context: A168210 A206612 A220131 * A300942 A160247 A300886 Adjacent sequences: A268720 A268721 A268722 * A268724 A268725 A268726 KEYWORD nonn AUTHOR Antti Karttunen, Feb 13 2016 STATUS approved

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Last modified September 26 10:59 EDT 2023. Contains 365656 sequences. (Running on oeis4.)