id:A046143 - OEIS Search Results

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Triangle of GCD[ 2^p-1,2^q-1 ] = 2^GCD[ p,q ]-1.

+0
1

1, 1, 3, 1, 1, 7, 1, 3, 1, 15, 1, 1, 1, 1, 31, 1, 3, 7, 3, 1, 63, 1, 1, 1, 1, 1, 1, 127, 1, 3, 1, 15, 1, 3, 1, 255, 1, 1, 7, 1, 1, 7, 1, 1, 511, 1, 3, 1, 3, 31, 3, 1, 3, 1, 1023, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2047, 1, 3, 7, 15, 1, 63, 1, 15, 7, 3, 1, 4095, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; table; graph; listen)

	OFFSET	`1,3`
	LINKS	`Eric Weisstein's World of Mathematics, More information`
	CROSSREFS	`Sequence in context: A102479 A053193 A010273 this_sequence A071812 A116407 A135288` `Adjacent sequences: A046140 A046141 A046142 this_sequence A046144 A046145 A046146`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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