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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A334476 a(n) is the Y-coordinate of the n-th point of the space filling curve T defined in A334474; sequence A334475 gives X-coordinates. 3 0, 1, 0, 1, 2, 3, 2, 1, 0, 0, 1, 2, 2, 3, 3, 3, 4, 5, 4, 5, 6, 7, 6, 5, 4, 4, 3, 2, 2, 1, 1, 0, 0, 0, 1, 0, 1, 2, 2, 3, 3, 3, 4, 4, 5, 6, 5, 4, 4, 5, 5, 6, 6, 7, 7, 7, 6, 7, 7, 7, 6, 5, 6, 7, 8, 9, 8, 9, 10, 11, 10, 9, 8, 8, 9, 10, 10, 11, 11, 11, 12, 13, 12 (list; graph; refs; listen; history; text; internal format) OFFSET 0,5 LINKS Rémy Sigrist, Table of n, a(n) for n = 0..8255 Rémy Sigrist, PARI program for A334476 Index entries for sequences related to coordinates of 2D curves FORMULA A334474(a(n), A334475(n)) = n. EXAMPLE The space filling curve T starts as follows: 5| ... | | | | 4| 16 | \ | \ 3| 5 15-14-13 | |\ | | | \ | 2| 4 6 11-12 | \ \ \ | \ \ \ 1| 1 3 7 10 | |\ | | | | | \| | | 0| 0 2 8--9 ---+------------- y/x| 0 1 2 3 - hence a(1) = a(3) = a(7) = a(10) = 1. PROG (PARI) See Links section. CROSSREFS Cf. A334474, A334475. Sequence in context: A301572 A017868 A353158 * A319573 A178904 A017858 Adjacent sequences: A334473 A334474 A334475 * A334477 A334478 A334479 KEYWORD nonn,look AUTHOR Rémy Sigrist, May 02 2020 STATUS approved

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Last modified August 18 23:05 EDT 2024. Contains 375284 sequences. (Running on oeis4.)