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Search: id:A054568
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| A054568 |
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Prime number spiral (clockwise, Southwest spoke). |
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+0
7
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| 2, 17, 73, 191, 367, 607, 919, 1297, 1753, 2309, 2909, 3623, 4421, 5303, 6257, 7307, 8447, 9643, 10979, 12421, 13883, 15467, 17203, 19037, 20921, 22853, 24953, 27091, 29389, 31859, 34267, 36847, 39551, 42307, 45233, 48311, 51407, 54547, 57781
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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8-spoke wheel overlays prime number spiral; hub is 2 in shell 0; 8 spokes radiate from this hub; this is Southwest, clockwise
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EXAMPLE
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Begin a prime number spiral at shell 0 (prime 2), proceed clockwise, Southwest
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MATHEMATICA
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Table[ Prime[4n^2 - 6n + 3], {n, 1, 40} ]
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CROSSREFS
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Cf. A054569, A054551, A054553, A054555, A054564, A054566, A054570, A053999.
Sequence in context: A042803 A056074 A155715 this_sequence A060352 A002523 A079889
Adjacent sequences: A054565 A054566 A054567 this_sequence A054569 A054570 A054571
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KEYWORD
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easy,nonn
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AUTHOR
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Enoch Haga (Enokh(AT)comcast.net ) and G. L. Honaker, Jr. (honak3r(AT)gmail.com), Apr 10 2000
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 25 2002
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