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A166348 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. 1
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; text; internal format)
OFFSET
1,2
LINKS
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
CROSSREFS
Sequence in context: A037012 A112467 A112466 * A294658 A127543 A353237
KEYWORD
nonn,tabf
AUTHOR
EXTENSIONS
Minor corrections by Christopher Hunt Gribble, Dec 13 2009
STATUS
approved

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Last modified July 18 06:54 EDT 2024. Contains 374377 sequences. (Running on oeis4.)