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A162341 a(n) = number of grid points P(x,y) that are covered by a polyedge as the graph of the "mountain path" function for prime numbers, where x=n and y=0..oo. 11
1, 1, 3, 1, 4, 2, 4, 2, 4, 4, 5, 3, 6, 2, 4, 4, 7, 3, 5, 4, 4, 3, 6, 4, 8, 5, 4, 2, 4, 2, 10, 8, 6, 3, 7, 5, 5, 5, 6, 4, 7, 3, 7, 5, 4, 2, 8, 11, 9, 2, 4, 4, 5, 5, 9, 5, 7, 3, 5, 4, 4, 5, 13, 8, 4, 2, 10, 9, 9, 5, 4, 4, 8, 6, 7, 4, 6, 6, 7, 5, 10, 5, 7, 5, 5, 4, 6, 6, 7, 2, 4, 7, 11, 5, 7, 5, 6, 8, 8, 9, 13, 7, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
COMMENTS
Se also A162340.
LINKS
FORMULA
a(n) = A052288(n-2) + (-1)^n for n>=3. [From Nathaniel Johnston, Nov 06 2010]
CROSSREFS
Sequence in context: A155481 A075148 A210722 * A066728 A279161 A222046
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jul 01 2009
EXTENSIONS
Edited by Omar E. Pol, Jul 05 2009
More terms from Nathaniel Johnston, Nov 06 2010
STATUS
approved

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Last modified June 18 17:37 EDT 2024. Contains 373483 sequences. (Running on oeis4.)