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 A330340 a(n) is the least k such that A092213(n) = k + reverse(k) (where reverse(k) is the binary reverse of k, A030101(k)). 2
 0, 1, 2, 4, 3, 6, 5, 7, 10, 16, 9, 14, 11, 20, 18, 15, 32, 17, 22, 26, 21, 19, 30, 34, 23, 27, 44, 31, 38, 64, 33, 50, 46, 37, 54, 35, 68, 45, 62, 39, 66, 76, 51, 84, 47, 55, 74, 70, 92, 63, 128, 65, 98, 78, 86, 73, 106, 69, 102, 94, 67, 132, 77, 110, 85, 118 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Rémy Sigrist, Table of n, a(n) for n = 0..7528 Rémy Sigrist, PARI program for A330340 FORMULA a(n) + A030101(a(n)) = A092213(n). a(n) <= A331585(n). EXAMPLE For n = 3: - A092213(3) = 5, - 4 is the least k such that k + reverse(k) = 5, - so a(3) = 4. PROG (PARI) See Links section. CROSSREFS Cf. A030101, A055944, A092213, A331585. Sequence in context: A255552 A255551 A332072 * A328696 A053629 A227370 Adjacent sequences:  A330337 A330338 A330339 * A330341 A330342 A330343 KEYWORD nonn,base AUTHOR Rémy Sigrist, Jan 21 2020 STATUS approved

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Last modified September 17 01:53 EDT 2021. Contains 347478 sequences. (Running on oeis4.)