id:A130875 - OEIS Search Results

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Absolute difference of final digits of two consecutive cubes.

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1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1, 1, 3, 1, 7, 9, 1, 7, 1, 3, 1 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Periodic with period 10.`
	FORMULA	`a(n)=(1/225){197(n mod 10)-28[(n+1) mod 10]-118[(n+2) mod 10]+62[(n+3) mod 10]-28[(n+4) mod 10]+17[(n+5) mod 10]+62[(n+6) mod 10]-28[(n+7) mod 10]+152[(n+8) mod 10]-118*[(n+9) mod 10]}, with n>=0. - Paolo P. Lava (ppl(AT)spl.at), Aug 01 2007`
	CROSSREFS	`Cf. A008960.` `Adjacent sequences: A130872 A130873 A130874 this_sequence A130876 A130877 A130878` `Sequence in context: A021588 A010144 A119506 this_sequence A039616 A089562 A104621`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Jul 25 2007`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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