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1, 5, 32, 145, 512, 1649, 5392, 18785, 69632, 268705, 1058576, 4208945, 16797952, 67137425, 268473872, 1073792449, 4295032832, 17179952705, 68719581712, 274878037265, 1099511787776, 4398046705585, 17592186278672
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| a(n) is prime iff n=1. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 24 2009]
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REFERENCES
| Notes, Mathematical Intelligencer 2(2) (1980), p.66. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 24 2009]
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Index to sequences with linear recurrences with constant coefficients, signature (9,-30,50,-45,21,-4).
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MAPLE
| seq(seq(k^n+n^k, k=4..4), n=0..22); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 29 2007
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MATHEMATICA
| f[n_]:=4^n+n^4; f[Range[0, 40]] (*From Vladimir Joseph Stephan Orlovsky, Feb 14 2011*)
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PROG
| (PARI) a(n)=1<<(n+n)+n^4
(MAGMA) [4^n+n^4: n in [0..30]]; // Vincenzo Librandi, Oct 27 2011
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CROSSREFS
| Cf. A001580, A001585.
Sequence in context: A184536 A089574 A077207 * A177467 A193783 A006214
Adjacent sequences: A001586 A001587 A001588 * A001590 A001591 A001592
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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