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A063174 Composites for which the row of the prime-composite array (A063173) includes the leftmost element of a zero-only antidiagonal. 4
9, 15, 21, 35, 45, 51, 65, 69, 95, 99, 119, 129, 135, 141, 155, 161, 189, 209, 215, 219, 249, 261, 299, 303, 305, 309, 321, 339, 341, 363, 365, 371, 399, 405, 413, 425, 441, 453, 465, 545, 555, 615, 623, 639, 651, 705, 713, 725, 729, 741, 771, 783, 803, 819 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

N. Fernandez, The prime-composite array, B(m,n) and the Borve conjectures

EXAMPLE

The 8th composite is 15. In the prime-composite array (A063173), all of the elements in the antidiagonal containing T(8,1) are 0. So 15 is in the sequence.

CROSSREFS

Cf. A063173, A063175, A063176.

Sequence in context: A033553 A020192 A241809 * A072569 A072572 A029708

Adjacent sequences:  A063171 A063172 A063173 * A063175 A063176 A063177

KEYWORD

nonn

AUTHOR

Neil Fernandez, Jul 09 2001

EXTENSIONS

Edited and extended by Robert G. Wilson v, Feb 07 2002

STATUS

approved

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Last modified March 30 12:10 EDT 2020. Contains 333125 sequences. (Running on oeis4.)