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%I #33 Sep 08 2022 08:45:01
%S 2,5,41,127,269,467,751,1093,1523,2027,2621,3299,4007,4861,5749,6763,
%T 7867,9041,10273,11719,13121,14723,16319,18061,19963,21851,23857,
%U 26021,28289,30661,33029,35531,38201,40993,43759,46751,49789,52957,56197
%N Prime number spiral (clockwise, Northeast spoke).
%C 8-spoke wheel overlays prime number spiral; hub is 2 in shell 0; 8 spokes radiate from this hub; this is Northeast, clockwise.
%H Ivan Panchenko, <a href="/A054553/b054553.txt">Table of n, a(n) for n = 0..1000</a>
%F a(n) = A000040(A054554(n+1)). - _R. J. Mathar_, Aug 29 2018
%e Begin a prime number spiral at shell 0 (prime 2), proceed clockwise, Northeast.
%e From _Omar E. Pol_, Feb 19 2022: (Start)
%e The spiral with four terms in every spoke looks like this:
%e .
%e 227 101--103--107--109--113--127
%e | | |
%e 223 97 29---31---37---41 131
%e | | | | |
%e 211 89 23 3----5 43 137
%e | | | | | | |
%e 199 83 19 2 7 47 139
%e | | | | | |
%e 197 79 17---13---11 53 149
%e | | | |
%e 193 73---71---67---61---59 151
%e | |
%e 191--181--179--173--167--163--157
%e .
%e (End)
%t Table[ Prime[4n^2 - 10n + 7], {n, 1, 40} ]
%o (Magma) [NthPrime(4*n^2 - 10*n + 7): n in [1..40]]; // _Vincenzo Librandi_, Aug 29 2018
%Y Cf. A000040, A054554, A054551, A054555, A054564, A054566, A054568, A054570, A053999.
%K easy,nonn
%O 0,1
%A _Enoch Haga_ and _G. L. Honaker, Jr._, Apr 10 2000
%E Edited by _Robert G. Wilson v_, Feb 25 2002
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