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A131992 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4. 7
31, 121, 781, 2801, 16105, 30941, 88741, 137561, 292561, 732541, 954305, 1926221, 2896405, 3500201, 4985761, 8042221, 12326281, 14076605, 20456441, 25774705, 28792661, 39449441, 48037081, 63455221, 89451461, 105101005, 113654321 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

a(n) = 1 + A131991(n)*A000040(n).

FORMULA

a(n) = (A050997(n) - 1)/A006093(n).

PROG

(MAGMA) [ 1+NthPrime(n)+NthPrime(n)^2+NthPrime(n)^3+NthPrime(n)^4: n in [1..30] ]; [From Vincenzo Librandi, Dec 27 2010]

CROSSREFS

Cf. A030514, A008864, A060800, A131993.

Sequence in context: A202994 A038992 A068021 * A042884 A153073 A042886

Adjacent sequences:  A131989 A131990 A131991 * A131993 A131994 A131995

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 06 2007

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Last modified February 14 20:38 EST 2012. Contains 205663 sequences.