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A256986 Solution to Popular Computing Contest 4, the Square Spiral. 1
1, 5, 14, 30, 54, 84, 123, 168, 220, 277, 343, 416, 495, 583, 675, 777, 0, 1000, 1121, 1252, 1391, 1532, 1683, 1844, 2010, 2183, 2364, 2551, 2743, 2949, 3163, 3378, 3603, 3835, 4073, 4320, 4573, 4832, 5099, 5379, 5658, 5945, 6245, 0, 6861, 7181, 7508, 7839, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
COMMENTS
See links for precise definition.
LINKS
Popular Computing (Calabasas, CA), Contest 4 Results (solution from Jeffrey Shallit), Vol. 4 (No. 40, July 1976), scanned copy of page PC40-12.
Popular Computing (Calabasas, CA), Contest 4 Results (solution from Jeffrey Shallit), Vol. 4 (No. 40, July 1976), scanned copy of page PC40-13.
Popular Computing (Calabasas, CA), Front cover of issue 35, Vol. 4 (No. 35, Feb 1976), the issue that contained the statement of the problem.
CROSSREFS
Sequence in context: A280230 A076042 A231669 * A162208 A161698 A049791
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 26 2015
EXTENSIONS
More terms from Lars Blomberg, Aug 04 2015
STATUS
approved

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Last modified June 23 15:06 EDT 2024. Contains 373651 sequences. (Running on oeis4.)