A063174 - OEIS

A063174

Composites for which the row of the prime-composite array (A063173) includes the leftmost element of a zero-only antidiagonal.

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

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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 * A338082 A336115 A072569

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