This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A048982 Number of numbers which have a "prime-rich" reduced residue system (RRS) and binary order n. 0
 0, 0, 0, 1, 3, 8, 15, 22, 32, 50, 85, 80, 98, 84, 59, 37, 10, 2, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS It is remarkable that in exponentially increasing ranges these occurrences increase to n=13 and after decline to zero. So A048868 is believed to be finite. LINKS EXAMPLE In binary order (A029837) zone of 7 i.e. in [ 63,127) 22 numbers which belong to A048868 can be found: 66,68,70,72,74,76,78,80,84,88, 90,96,98,100,102,104,108,110,112,114,120 and 126. The largest term is 90090. The largest 4 are divided by 2310, the largest 28 by 210 and the largest 103 by 30. CROSSREFS Cf. A048862-A048869, A002110, A029837, A048597. Sequence in context: A060320 A162372 A101711 * A064356 A157606 A191414 Adjacent sequences:  A048979 A048980 A048981 * A048983 A048984 A048985 KEYWORD nonn AUTHOR Labos E. (labos(AT)ana.sote.hu) STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .