id:A106379 - OEIS Search Results

Search: id:A106379

Displaying 1-1 of 1 results found.

page 1

Consider the Gaussian primes of the first quadrant a+bi, with a>0, b>=0, ordered as a sequence by the size of the norm and the size of a, as defined in A103431. The product of these primes up to a+bi, written here as cp#, has the property cp#-1 is a Gaussian prime. a(n) is the real part a of such a+bi. cp#-1 is not necessarily in the first quadrant.

+0
5

1, 2, 3, 6, 5, 11, 10, 18, 12, 19, 10, 13, 5, 20, 6 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`A106380 has the imaginary parts.`
	EXAMPLE	`(1+i)(1+2i)(2+i)3(2+3i)*(3+2i) - 1 = (-195-195i) - 1 = (-196-195i), which is a Gaussian prime. This is the third number with the property, so a(3) = 3.`
	CROSSREFS	`Cf. A103431, A103432, A106377, A106380, A106381, A106383.` `Sequence in context: A019565 A133477 A039653 this_sequence A001634 A095113 A002517` `Adjacent sequences: A106376 A106377 A106378 this_sequence A106380 A106381 A106382`
	KEYWORD	`nonn`
	AUTHOR	`Sven Simon (sven-h.simon(AT)t-online.de), Apr 30 2005`

page 1

Search completed in 0.003 seconds

Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research