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A166348 Irregular triangle read by rows of the frequency with which each non-zero value of floor (j^2/p) occurs within A165974 for each j, taken over all primes p. +0
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; listen)
OFFSET

1,2

COMMENT

Part of the irregular triangle from which the sequence is constructed is

shown below.

....freq..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

Cf. A165974

Sequence in context: A037012 A112467 A112466 this_sequence A127543 A068907 A033687

Adjacent sequences: A166345 A166346 A166347 this_sequence A166349 A166350 A166351

KEYWORD

nonn

AUTHOR

Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Oct 12 2009

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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