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A264976
Permutation of nonnegative integers: a(n) = A263272(A264974(n)).
7
0, 1, 2, 3, 4, 5, 6, 11, 32, 9, 10, 29, 12, 13, 14, 15, 8, 23, 18, 7, 20, 33, 34, 95, 96, 35, 104, 27, 28, 83, 30, 31, 86, 87, 38, 113, 36, 37, 110, 39, 40, 41, 42, 17, 50, 45, 16, 47, 24, 25, 68, 69, 26, 77, 54, 19, 56, 21, 22, 59, 60, 101, 302, 99, 100, 299, 102, 103, 284, 285, 98, 293, 288, 97, 290, 105, 106, 311, 312, 107, 320, 81
OFFSET
0,3
FORMULA
a(n) = A263272(A264974(n)).
a(n) = (1/2) * A263273(A263273(4*n) / 2).
Other identities. For all n >= 0:
a(3*n) = 3*a(n).
A000035(a(n)) = A000035(n). [This permutation preserves the parity of n.]
PROG
(Scheme, two alternative definitions)
(define (A264976 n) (A263272 (A264974 n)))
(define (A264976 n) (/ (A263273 (/ (A263273 (* 4 n)) 2)) 2))
CROSSREFS
Inverse: A264975
Cf. also A264991, A264992.
Sequence in context: A283563 A033078 A118598 * A243286 A113006 A113323
KEYWORD
nonn
AUTHOR
Antti Karttunen, Dec 05 2015
STATUS
approved