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A054553 Prime number spiral (clockwise, Northeast spoke). 8
2, 5, 41, 127, 269, 467, 751, 1093, 1523, 2027, 2621, 3299, 4007, 4861, 5749, 6763, 7867, 9041, 10273, 11719, 13121, 14723, 16319, 18061, 19963, 21851, 23857, 26021, 28289, 30661, 33029, 35531, 38201, 40993, 43759, 46751, 49789, 52957, 56197 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

8-spoke wheel overlays prime number spiral; hub is 2 in shell 0; 8 spokes radiate from this hub; this is Northeast, clockwise.

EXAMPLE

Begin a prime number spiral at shell 0 (prime 2), proceed clockwise, Northeast

MATHEMATICA

Table[ Prime[4n^2 - 10n + 7], {n, 1, 40} ]

CROSSREFS

Cf. A054554, A054551, A054555, A054564, A054566, A054568, A054570, A053999.

Sequence in context: A106885 A072439 A002592 * A185052 A009457 A175172

Adjacent sequences:  A054550 A054551 A054552 * A054554 A054555 A054556

KEYWORD

easy,nonn

AUTHOR

Enoch Haga (Enokh(AT)comcast.net) and G. L. Honaker, Jr. (honak3r(AT)gmail.com), Apr 10 2000

EXTENSIONS

Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 25 2002

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.