A268716 a(n) = 2*A006068(n); main diagonal of A268714.

0, 2, 6, 4, 14, 12, 8, 10, 30, 28, 24, 26, 16, 18, 22, 20, 62, 60, 56, 58, 48, 50, 54, 52, 32, 34, 38, 36, 46, 44, 40, 42, 126, 124, 120, 122, 112, 114, 118, 116, 96, 98, 102, 100, 110, 108, 104, 106, 64, 66, 70, 68, 78, 76, 72, 74, 94, 92, 88, 90, 80, 82, 86, 84, 254, 252, 248, 250, 240, 242, 246, 244, 224, 226

Offset

0,2

Links

Antti Karttunen, Table of n, a(n) for n = 0..8191

Formula

a(n) = 2*A006068(n).

a(n) = A006068(A001969(n+1)).

a(n) = A268714(n,n).

Prog

(Scheme) (define (A268716 n) (* 2 (A006068 n)))
(Python)
def A268716(n):
    k, m = n, n>>1
    while m > 0:
        k ^= m
        m >>= 1
    return k<<1 # Chai Wah Wu, Jun 30 2022

Crossrefs

Cf. A001969, A006068.

Main diagonal of array A268714.

Row 3 and column 3 of array A268724.

Sequence in context: A365902 A303823 A286712 * A204985 A255066 A184364

Adjacent sequences: A268713 A268714 A268715 * A268717 A268718 A268719

Keyword

nonn

Author

Antti Karttunen, Feb 12 2016

Status

approved