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Decimal expansion of the third (of 10) decimal selvage numbers; the n-th digit of a decimal selvage number, x, is equal to the tenths digit of n*x.

+0
6

2, 5, 7, 0, 2, 5, 7, 0, 3, 5, 8, 0, 3, 5, 8, 1, 3, 6, 8, 1, 3, 6, 9, 1, 4, 6, 9, 1, 4, 7, 9, 2, 4, 7, 9, 2, 5, 7, 0, 2, 5, 7, 0, 3, 5, 8, 0, 3, 5, 8, 1, 3, 6, 8, 1, 3, 6, 9, 1, 4, 6, 9, 1, 4, 7, 9, 2, 4, 7, 9, 2, 5, 7, 0, 2, 5, 7, 0, 3, 5, 8, 0, 3, 5, 8, 1, 3, 6, 8, 1, 3, 6, 9, 1, 4, 6, 9, 1, 4, 7 (list; cons; graph; listen)

	OFFSET	`0,1`
	COMMENT	`The selvage number, x = sum{k=1..inf} a(k)/10^k, is a normal number, but it is not known whether or not x is irrational. Is this sequence periodic?`
	FORMULA	`a(n) = floor[10(nx)] (Mod 10), where x = sum{k=1..inf} a(k)/10^k.`
	EXAMPLE	`a(6) = 5 since floor(10(6x)) = 5, x=.25702570358035813681369146914792479257025703580358...`
	CROSSREFS	`Sequence in context: A111190 A009376 A025123 this_sequence A021393 A010589 A024715` `Adjacent sequences: A071788 A071789 A071790 this_sequence A071792 A071793 A071794`
	KEYWORD	`cons,nice,nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Jun 06 2002`

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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.

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