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A054555
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Prime number spiral (clockwise, East spoke).
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8
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2, 7, 47, 139, 283, 503, 797, 1151, 1579, 2089, 2689, 3361, 4099, 4967, 5861, 6883, 8011, 9199, 10457, 11903, 13313, 14887, 16547, 18269, 20161, 22091, 24083, 26297, 28573, 30941, 33347, 35899, 38593, 41299, 44111, 47149, 50131, 53327, 56597
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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FORMULA
| 8-spoke wheel overlays prime number spiral; hub is 2 in shell 0; 8 spokes radiate from this hub; this is East, clockwise
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EXAMPLE
| Begin a prime number spiral at shell 0 (prime 2), proceed clockwise, East
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MATHEMATICA
| Table[ Prime[4n^2 - 9n + 6], {n, 1, 40} ]
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CROSSREFS
| Cf. A054556, A054551, A054553, A054564, A054566, A054568, A054570, A053999.
Sequence in context: A062632 A116892 A201481 * A072287 A091117 A056854
Adjacent sequences: A054552 A054553 A054554 * A054556 A054557 A054558
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KEYWORD
| easy,nonn
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AUTHOR
| Enoch Haga, (Enokh(AT)comcast.net) and G. L. Honaker, Jr. (honak3r(AT)gmail.com), Apr 10 2000
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EXTENSIONS
| Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 25 2002
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