login
This site is supported by donations to The OEIS Foundation.

 

Logo

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.

License Agreements, Terms of Use, Privacy Policy .

Last modified November 20 10:41 EST 2017. Contains 294963 sequences.