This site is supported by donations to The OEIS Foundation.

 Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS". Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A131993 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4 + prime(n)^5. 8
 63, 364, 3906, 19608, 177156, 402234, 1508598, 2613660, 6728904, 21243690, 29583456, 71270178, 118752606, 150508644, 234330768, 426237714, 727250580, 858672906, 1370581548, 1830004056, 2101864254, 3116505840, 3987077724 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS a(n) = 1 + A131992(n)*A000040(n). LINKS Ivan Panchenko, Table of n, a(n) for n = 1..1000 FORMULA a(n) = (A030516(n) - 1)/A006093(n). MATHEMATICA Total[#^Range[0, 5]]&/@Prime[Range[30]]  (* Harvey P. Dale, Apr 20 2011 *) PROG (MAGMA) [1+(&+[NthPrime(n)^(k): k in [1..5]]): n in [1..100]]; // Berselli - Librandi, Apr 20 2011 CROSSREFS Cf. A050997, A008864, A060800, A131991. Sequence in context: A203556 A038993 A068022 * A251019 A251012 A092050 Adjacent sequences:  A131990 A131991 A131992 * A131994 A131995 A131996 KEYWORD nonn AUTHOR Reinhard Zumkeller, Aug 06 2007 STATUS approved

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