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A098139 2^p + 3^p + 5^p + 7^p where p = prime(n). 0
87, 503, 20207, 903983, 2026334063, 98111316047, 233393582711567, 11417969834487023, 27380668363187561903, 3220092020396733736776527, 157780038648336559551388463, 18562188680594166420755526825167 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

2^2 + 3^2 + 5^2 + 7^2 = 87

MATHEMATICA

Table[2^Prime[n] + 3^Prime[n] + 5^Prime[n] + 7^Prime[n], {n, 1, 15}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 28 2006

CROSSREFS

Sequence in context: A186055 A033631 A183724 * A109601 A061625 A128956

Adjacent sequences:  A098136 A098137 A098138 * A098140 A098141 A098142

KEYWORD

nonn

AUTHOR

Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Sep 27 2004

EXTENSIONS

More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Feb 28 2006

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Last modified February 15 12:01 EST 2012. Contains 205782 sequences.