This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A087196 Primes of the form 1+(1+p)*p^e, p prime and e>0. 1
 7, 13, 31, 37, 97, 109, 151, 193, 307, 751, 769, 1453, 1723, 2917, 3541, 5113, 8011, 10303, 12289, 12697, 15973, 17293, 28057, 30103, 86143, 106033, 147073, 151687, 362953, 459007, 492103, 552793, 579883, 598303, 684757, 704761, 712891 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS EXAMPLE p=2, e=12: 1+(1+A000040(1))*A000040(1)^12 = 1+(1+2)*2^12 = 1+3*128 = 12289 = A000040(1470), therefore 12289 is a term: a(19)=A087195(54)=12289; p=23, e=2: 1+(1+A000040(9))*A000040(9)^2 = 1+(1+23)*23^2 = 1+24*529 = 12697 = A000040(1516), therefore 12697 is a term: a(20)=A087195(55)=12697. CROSSREFS Cf. A087195. Sequence in context: A151723 A046139 A023243 * A074963 A110912 A085104 Adjacent sequences:  A087193 A087194 A087195 * A087197 A087198 A087199 KEYWORD nonn AUTHOR Reinhard Zumkeller, Aug 24 2003 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 .