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 A264965 Permutation of nonnegative integers: a(n) = A263273(A057889(n)). 13
 0, 1, 2, 3, 4, 7, 6, 5, 8, 9, 10, 13, 12, 19, 22, 21, 16, 25, 18, 17, 20, 15, 26, 55, 24, 11, 14, 27, 28, 23, 30, 37, 64, 57, 46, 43, 36, 67, 70, 33, 40, 31, 66, 79, 52, 63, 38, 47, 48, 73, 58, 75, 76, 49, 54, 65, 56, 39, 34, 29, 60, 61, 74, 45, 32, 59, 42, 145, 68, 81, 226, 193, 72, 35, 82, 219, 100, 217, 174, 121, 80, 69 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Perform an adjusted reverse of n in base 2, followed by another adjusted reverse in base 3. "Adjusted reverse" here means the digit-reversing operation in which the tail of trailing zeros (in the base in question) is fixed, while the portion from the most significant digit to the least significant nonzero digit is reversed. What percentage of the cycles are finite? (See the scatter-plot and A264969, also A264972, A264973.) LINKS Antti Karttunen, Table of n, a(n) for n = 0..10000 Indranil Ghosh, Python program to generate the sequence FORMULA a(n) = A263273(A057889(n)). Other identities. For all n >= 0: A000035(a(n)) = A000035(n). [This permutation preserves the parity of n.] PROG (Scheme) (define (A264965 n) (A263273 (A057889 n))) CROSSREFS Inverse: A264966. Cf. A000035, A057889, A263273, A264969, A264972, A264973. Cf. also A264967, A264968. Sequence in context: A077223 A265369 A267308 * A266644 A329411 A055265 Adjacent sequences: A264962 A264963 A264964 * A264966 A264967 A264968 KEYWORD nonn,base,look AUTHOR Antti Karttunen, Dec 05 2015 STATUS approved

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Last modified September 10 08:45 EDT 2024. Contains 375786 sequences. (Running on oeis4.)