A164384 - OEIS

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A164384

Positive nonprimes of the form p-4 where p is prime.

1, 9, 15, 25, 27, 33, 39, 49, 55, 57, 63, 69, 75, 85, 93, 99, 105, 123, 133, 135, 145, 147, 153, 159, 169, 175, 177, 187, 189, 195, 207, 219, 225, 235, 237, 247, 253, 259, 265, 267, 273, 279, 289, 303, 309, 327, 333, 343, 345, 355, 363, 369, 375, 385, 393, 405

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..56.

EXAMPLE

a(1)=5 (prime)-4 =1 (positive nonprime). a(2)=13 (prime)-4 = 9 (positive nonprime).

CROSSREFS

Cf. A000040, A141468, A023200.

Sequence in context: A172292 A075638 A145743 * A138193 A330947 A337237

Adjacent sequences: A164381 A164382 A164383 * A164385 A164386 A164387

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Aug 14 2009

EXTENSIONS

Entries checked by R. J. Mathar, Aug 20 2009

STATUS

approved