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a(n) = 1 + n^4 + n^6 + n^9 + n^10 + n^14.
4

%I #13 Sep 08 2022 08:45:28

%S 6,18001,4862512,269750529,6115250626,78434755921,678546021756,

%T 4399254736897,22880667197854,100011001010001,379778130741736,

%U 1283985544700161,3937524853545882,11112316748827729,29193541130581876

%N a(n) = 1 + n^4 + n^6 + n^9 + n^10 + n^14.

%H G. C. Greubel, <a href="/A123659/b123659.txt">Table of n, a(n) for n = 1..1000</a>

%F a(n) = 1 + n^4 + n^6 + n^9 + n^10 + n^14.

%t Table[1 + n^4 + n^6 + n^9 + n^10 + n^14, {n, 1, 50}] (* _G. C. Greubel_, Oct 17 2017 *)

%o (PARI) for(n=1,25, print1(1 + n^4 + n^6 + n^9 + n^10 + n^14, ", ")) \\ _G. C. Greubel_, Oct 17 2017

%o (Magma) [1 + n^4 + n^6 + n^9 + n^10 + n^14: n in [1..25]]; // _G. C. Greubel_, Oct 17 2017

%Y Cf. A001358, A002523, A091940, A123177, A123656-A123659.

%K easy,nonn

%O 1,1

%A _Jonathan Vos Post_, Oct 05 2006