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 A112060 Square array A(x,y) = y-th natural number k for which A112049(k)=x and 0 if no such k exists; read by antidiagonals A(1,1), A(2,1), A(1,2), A(3,1), A(2,2), ... 16
 1, 2, 3, 5, 4, 11, 6, 7, 12, 24, 9, 8, 23, 35, 60, 10, 15, 36, 59, 155, 84, 13, 16, 47, 95, 275, 239, 144, 14, 19, 48, 119, 335, 575, 779, 180, 17, 20, 71, 120, 359, 659, 1499, 2855, 264, 18, 27, 72, 179, 419, 839, 1535, 4199, 5279, 420, 21, 28, 83, 204, 504 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS This is a permutation of natural numbers provided that the sequence A112046 contains only prime values [which is true] and every prime occurs infinitely many times there. LINKS Table of n, a(n) for n=1..60. Index entries for sequences that are permutations of the natural numbers EXAMPLE The top left corner of the array: 1, 2, 5, 6, 9, 10, ... 3, 4, 7, 8, 15, 16, ... 11, 12, 23, 36, 47, ... CROSSREFS A112070(x, y) = 2*A(X, Y)+1. Transpose: A112061. Column 1: A112051. Row 1: A042963, Row 2: A112062, Row 3: A112063, Row 4: A112064, Row 5: A112065, Row 6: A112066, Row 7: A112067, Row 8: A112068, Row 9: A112069. Cf. also A227196. Sequence in context: A079521 A325549 A370895 * A084933 A355065 A213900 Adjacent sequences: A112057 A112058 A112059 * A112061 A112062 A112063 KEYWORD nonn,tabl AUTHOR Antti Karttunen, Aug 27 2005 STATUS approved

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Last modified June 23 08:25 EDT 2024. Contains 373629 sequences. (Running on oeis4.)