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A166348
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Irregular triangle read by rows giving the frequency with which each nonzero value v of floor (j^2/p) occurs within A165974 for each j, taken over all primes p.
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1
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1, 2, 0, 2, 1, 1, 4, 1, 1, 0, 4, 2, 1, 0, 1, 6, 3, 1, 1, 0, 0, 7, 3, 2, 1, 1, 0, 0, 10, 3, 1, 2, 0, 1, 1, 0, 10, 4, 2, 1, 2, 0, 1, 0, 1, 13, 5, 2, 1, 1, 1, 1, 0, 1, 0, 14, 5, 4, 2, 0, 1, 1, 1, 0, 0, 1, 16, 7, 3, 2, 2, 0, 1, 1, 1, 0, 0, 0, 19, 7, 3, 3, 1, 2, 0, 1, 0, 1, 1, 0, 0
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| C. H. Gribble, Flattened triangle read by rows as table of n, a(n) for n = 1:495510 (j = 1:995).
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EXAMPLE
| Part of the irregular triangle from which the sequence is constructed is shown below.
....v...1..2..3..4..5..6..7..8..9.10.11.12.13
..j
..1.....
..2.....1
..3.....2..0
..4.....2..1..1
..5.....4..1..1..0
..6.....4..2..1..0..1
..7.....6..3..1..1..0..0
..8.....7..3..2..1..1..0..0
..9....10..3..1..2..0..1..1..0
.10....10..4..2..1..2..0..1..0..1
.11....13..5..2..1..1..1..1..0..1..0
.12....14..5..4..2..0..1..1..1..0..0..1
.13....16..7..3..2..2..0..1..1..1..0..0..0
.14....19..7..3..3..1..2..0..1..0..1..1..0..0
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CROSSREFS
| Cf. A165974
Sequence in context: A037012 A112467 A112466 * A127543 A068907 A033687
Adjacent sequences: A166345 A166346 A166347 * A166349 A166350 A166351
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KEYWORD
| nonn
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AUTHOR
| Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Oct 12 2009
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EXTENSIONS
| Minor corrections by Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Dec 13 2009
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