A001594
a(n) = 6^n + n^6.
Original entry on oeis.org
1, 7, 100, 945, 5392, 23401, 93312, 397585, 1941760, 10609137, 61466176, 364568617, 2179768320, 13065520825, 78371693632, 470196375201, 2821126684672, 16926683582305, 101559990680640, 609359787056377
Offset: 0
- Vincenzo Librandi, Table of n, a(n) for n = 0..1000
- Index entries for linear recurrences with constant coefficients, signature (13,-63,161,-245,231,-133,43,-6).
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[6^n+n^6: n in [0..30]]; // Vincenzo Librandi, Oct 27 2011
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seq(seq(k^n+n^k, k=6..6), n=0..19); # Zerinvary Lajos, Jun 29 2007
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Table[6^n + n^6, {n, 0, 30}] (* or *) CoefficientList[Series[(1 - 6 x + 72 x^2 - 75 x^3 - 1475 x^4 - 1776 x^5 - 334 x^6 - 7 x^7)/((1-x)^7 (1-6 x)), {x, 0, 30}], x] (* Vincenzo Librandi, Aug 28 2014 *)
LinearRecurrence[{13,-63,161,-245,231,-133,43,-6},{1,7,100,945,5392,23401,93312,397585},20] (* Harvey P. Dale, Jan 07 2023 *)
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a(n)=6^n+n^6 \\ Charles R Greathouse IV, Feb 14 2011
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[6^n+n^6 for n in (0..30)] # Bruno Berselli, Aug 28 2014
Original entry on oeis.org
1, 12, 2169, 178478, 4208945, 48989176, 364568617, 1996813914, 8804293473, 33739007300, 125937424601, 570623341222, 3881436747409, 36314872537968, 383799398752905, 4185897925275026, 45967322049616577, 505481300395601404
Offset: 0
- Vincenzo Librandi, Table of n, a(n) for n = 0..950
- Index entries for linear recurrences with constant coefficients, signature (23,-198,946,-2915,6237,-9636,10956,-9207,5665,-2486,738,-133,11).
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[11^n+n^11: n in [0..20]]
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Table[11^n + n^11, {n, 0, 30}] (* or *) CoefficientList[Series[(1 - 11 x + 2091 x^2 + 130021 x^3 + 524976 x^4 -14501046 x^5 - 91394082 x^6 - 163229406 x^7 - 104915271 x^8 - 24085951 x^9 - 1676905 x^10 - 22407 x^11 - 10 x^12)/((1 - x)^12 (1 - 11 x)), {x, 0, 30}], x] (* Vincenzo Librandi, Aug 28 2014 *)
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a(n)= 11^n+n^11 \\ Charles R Greathouse IV, Jan 11 2012
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[11^n+n^11 for n in (0..30)] # Bruno Berselli, Aug 28 2014
A198401
a(n) = 8^n + n^8.
Original entry on oeis.org
1, 9, 320, 7073, 69632, 423393, 1941760, 7861953, 33554432, 177264449, 1173741824, 8804293473, 69149458432, 550571544609, 4399522300160, 35186934979457, 281479271677952, 2251806789442689, 18014409529442560, 144115205059418913
Offset: 0
- Vincenzo Librandi, Table of n, a(n) for n = 0..1000
- Index entries for linear recurrences with constant coefficients, signature (17,-108,372,-798,1134,-1092,708,-297,73,-8).
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[8^n+n^8: n in [0..20]]
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f[n_] := 8^n + n^8; f[Range[0, 30]]
LinearRecurrence[{17,-108,372,-798,1134,-1092,708,-297,73,-8},{1,9,320,7073,69632,423393,1941760,7861953,33554432,177264449},30] (* Harvey P. Dale, Aug 26 2023 *)
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a(n)=8^n+n^8 \\ Charles R Greathouse IV, Oct 16 2015
A276203
Numbers k such that k^9 + 9^k is prime.
Original entry on oeis.org
2, 76, 122, 422, 2300, 5090, 7166, 58046, 91382, 234178, 314738
Offset: 1
2 is a term of the sequence, because A185277(2) = 593 is prime.
Showing 1-4 of 4 results.
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