id:A134928 - OEIS Search Results

Search: id:A134928

Displaying 1-1 of 1 results found.

page 1

Triplet composites.

+0
3

4, 6, 8, 10, 12, 14, 16, 18, 20, 28, 30, 32, 40, 42, 44, 58, 60, 62, 70, 72, 74, 100, 102, 104, 106, 108, 110, 136, 138, 140, 148, 150, 152, 178, 180, 182, 190, 192, 194, 196, 198, 200, 226, 228, 230, 238, 240, 242, 268, 270, 272, 280, 282, 284 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Numbers that are composites and nearest-neighbors of twin primes.`
	LINKS	`O. E. Pol, Determinacion geometrica de los numeros primos y compuesto.`
	EXAMPLE	`28, 30 and 32 are triplet composites because 29 and 31 are twin primes and 28, 30 and 32 are composites and nearest-neighbors of 29 and 31.`
	CROSSREFS	`Cf. Twin primes = A001097, Composite numbers = A002808.` `Adjacent sequences: A134925 A134926 A134927 this_sequence A134929 A134930 A134931` `Sequence in context: A103517 A093161 A111305 this_sequence A141109 A061344 A066664`
	KEYWORD	`easy,nonn`
	AUTHOR	`Omar E. Pol (info(AT)polprimos.com), Nov 16 2007`

page 1

Search completed in 0.002 seconds

Last modified January 8 02:43 EST 2009. Contains 152824 sequences.

AT&T Labs Research