The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A146941 Odd prime difference array. Let p(n) be the n-th odd prime; row n consists of all k such that p(k+1)-p(k)=2n. 1
 1, 2, 3, 4, 5, 8, 6, 7, 10, 23, 9, 11, 14, 71, 33, 12, 13, 15, 76, 41, 45, 16, 18, 17, 78, 52, 46, 29, 19, 21, 20, 86, 60, 90, 61, 281, 25, 24, 22, 91, 67, 96, 65, 294, 98, 27, 26, 31, 93, 79, 113, 136, 318, 179, 153, 32, 28, 35, 123, 81, 120, 145, 330, 204, 258, 188, 34 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS (Column 1) = A073051. LINKS Table of n, a(n) for n=1..67. Index entries for sequences that are permutations of the natural numbers EXAMPLE Northwest corner: 1 2 4 6 9 3 5 7 11 13 8 10 14 15 17 23 71 76 78 86 Row 3: 6=p(9)-p(8)=p(11)-p(9)=p(15)-p(14) That's 6=29-23=37-31=53-47. PROG (PARI) lista_by_rows(nn) = {for (n=1, nn, nb = 0; k = 2; ok = 0; until(ok, if (prime(k+1) - prime(k) == 2*n, print1(k-1, ", "); nb++; if (nb == nn, ok = 1); ); k++; ); print(); ); } \\ Michel Marcus, Apr 21 2013 CROSSREFS Cf. A000040, A073051 Sequence in context: A370794 A162371 A269856 * A194067 A191710 A194061 Adjacent sequences: A146938 A146939 A146940 * A146942 A146943 A146944 KEYWORD nonn,tabl AUTHOR Clark Kimberling, Nov 02 2008 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 26 19:24 EDT 2024. Contains 372844 sequences. (Running on oeis4.)