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A194188 Triangle read by rows in which row n lists the numbers k >= 0 such that n-k and n+k are both odd noncomposite numbers. 0
0, 1, 0, 2, 1, 3, 0, 2, 1, 5, 0, 4, 6, 3, 5, 2, 4, 8, 3, 7, 9, 0, 6, 8, 1, 5, 7, 11, 0, 6, 10, 3, 9, 2, 4, 8, 14, 3, 13, 15, 0, 6, 12, 14, 1, 5, 11, 13, 0, 12, 18, 3, 9, 17, 2, 8, 10, 16, 20, 9, 15, 19, 21, 0, 6, 18, 20, 5, 7, 13, 17, 19, 23, 6, 12, 18, 22, 3, 15, 21, 4, 10, 14, 16, 20, 26, 9, 15, 25, 0, 12, 18, 24, 1, 7, 11, 13, 17, 23, 29 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..100.

EXAMPLE

Triangle begins;

0;

1;

0,2;

1,3;

0,2;

1,5;

0,4,6;

3,5;

2,4,8;

3,7,9;

0,6,8;

1,5,7,11;

CROSSREFS

Cf. A006005(the odd noncomposite numbers), A027750

Sequence in context: A281488 A071461 A091829 * A104512 A131848 A287873

Adjacent sequences:  A194185 A194186 A194187 * A194189 A194190 A194191

KEYWORD

nonn,tabf

AUTHOR

Juri-Stepan Gerasimov, Aug 18 2011

EXTENSIONS

Corrected by R. J. Mathar Aug 27 2011

STATUS

approved

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Last modified February 25 19:32 EST 2020. Contains 332257 sequences. (Running on oeis4.)