The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A327919 The 17 pure prime dates of each leap year of the form concatenate(month,day) with month and day also prime numbers. 2
 23, 211, 223, 229, 37, 311, 313, 317, 331, 53, 523, 73, 719, 113, 1117, 1123, 1129 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS For the non-leap case see A327918. The months m = 2, 3, 5, 7, 11 contribute 4, 5, 2, 2, 4 days, respectively, adding to 17. LINKS Table of n, a(n) for n=1..17. CROSSREFS Cf. A165243 (first four terms), A165292 (first five terms), A165555 (first two terms), A167187 (first two terms), A327349 (m and d nonprime allowed), A327915 (with 0 before d = 1..9), A327918 (non-leap year case), A327920 (pure prime dates of d.m form). Sequence in context: A084428 A322287 A327918 * A165243 A142374 A171342 Adjacent sequences: A327916 A327917 A327918 * A327920 A327921 A327922 KEYWORD nonn,easy,fini,full AUTHOR Wolfdieter Lang, Oct 08 2019 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 July 20 09:46 EDT 2024. Contains 374445 sequences. (Running on oeis4.)