Search: id:A060887
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%I A060887
%S A060887 1,13,8191,797161,22369621,305175781,2612138803,16148168401,78536544841,
%T A060887 317733228541,1111111111111,3452271214393,9726655034461,25239592216021,
%U A060887 61054982558011,139013933454241,300239975158033,619036127056621
%N A060887 n^12 + n^11 + n^10 + n^9 + n^8 + n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + 
               n + 1.
%C A060887 Let Phi_k(x) be the k-th cyclotomic polynomial and form the sequence 
               Phi_k(0), Phi_k(1), Phi_k(2), ... This gives A000027 (k=2), A002061 
               (k=3), A002522 (k=4), A053699 (k=5), A002061 (k=6), A053716 (k=7), 
               A002523 (k=8), A060883 (k=9), A060884 (k=10), A060885 (k=11), A060886 
               (k=12), A060887 (k=13), A060888 (k=14), A060889 (k=15), A060890 (k=16), 
               A060891 (k=18), A060892 (k=20), A060893 (k=24), A060894 (k=30), A060895 
               (k=32), A060896 (k=36).
%H A060887 Harry J. Smith, <a href="b060887.txt">Table of n, a(n) for n=0,...,1000</
               a>
%o A060887 (PARI) { for (n=0, 1000, write("b060887.txt", n, " ", n^12 + n^11 + n^10 
               + n^9 + n^8 + n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1); ) } [From 
               Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 14 2009]
%Y A060887 Sequence in context: A006541 A103857 A032463 this_sequence A020521 A122429 
               A068731
%Y A060887 Adjacent sequences: A060884 A060885 A060886 this_sequence A060888 A060889 
               A060890
%K A060887 nonn
%O A060887 0,2
%A A060887 N. J. A. Sloane (njas(AT)research.att.com), May 05 2001

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