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A166347 Irregular triangle read by rows of the frequency with which each value v of floor (j^2/p) occurs within A165974 for each prime p, taken over 1 <= j <= p - 1. 1
1, 0, 1, 1, 0, 2, 1, 0, 1, 0, 2, 1, 1, 1, 0, 1, 0, 3, 1, 1, 1, 1, 1, 0, 1, 0, 1, 0, 3, 2, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 4, 1, 2, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 4, 2, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

COMMENTS

Part of the irregular triangle from which the sequence is constructed

is shown below.

....v..0..1..2..3..4..5..6..7..8..9.10.11.12.13.14.15.16.17.18.19.20.21.22

..p

..2....1..0

..3....1..1..0

..5....2..1..0..1..0

..7....2..1..1..1..0..1..0

.11....3..1..1..1..1..1..0..1..0..1..0

.13....3..2..1..1..1..0..1..1..0..1..0..1..0

.17....4..1..2..1..1..1..0..1..1..1..0..1..0..1..0..1..0

.19....4..2..1..1..1..1..1..1..1..0..1..1..0..1..0..1..0..1..0

.23....4..2..2..1..1..1..1..1..1..1..0..1..1..0..1..1..0..1..0..1..0..1..0

LINKS

C. H. Gribble, Flattened irregular triangle read by rows of primes < 300

CROSSREFS

Cf. A165974

Sequence in context: A079694 A068906 A162514 * A055300 A156256 A029406

Adjacent sequences:  A166344 A166345 A166346 * A166348 A166349 A166350

KEYWORD

nonn,tabf

AUTHOR

Christopher Hunt Gribble, Oct 12 2009

EXTENSIONS

Minor edits by Christopher Hunt Gribble, Oct 13 2009

STATUS

approved

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Last modified January 17 15:12 EST 2020. Contains 330958 sequences. (Running on oeis4.)