id:A087490 - OEIS Search Results

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Primes n such that 4^n-3^n is composite.

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5, 11, 13, 19, 23, 29, 31, 37, 41, 43, 47, 53, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 293, 307 (list; graph; listen)

	OFFSET	`2,1`
	PROGRAM	`(PARI) apmb(a, b, n) = { forprime(x=2, n, y=a^x-b^x; if(!ispseudoprime(y), print1(x", "); ) ) }`
	CROSSREFS	`Sequence in context: A124662 A049511 A024900 this_sequence A079019 A023225 A098085` `Adjacent sequences: A087487 A087488 A087489 this_sequence A087491 A087492 A087493`
	KEYWORD	`nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Oct 26 2003`

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.

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