id:A104619 - OEIS Search Results

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Write the natural numbers in base 16 in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.

+0
16

1, 3, 6, 10, 15, 2, 1, 1, 14, 3, 2, 2, 5, 12, 4, 4, 4, 13, 6, 7, 11, 6, 9, 9, 10, 7, 12, 13, 1, 0, 1, 10, 5, 1, 12, 8, 1, 1, 14, 1, 9, 7, 1, 4, 3, 1, 2, 2, 1, 3, 4, 2, 7, 9, 2, 14, 1, 2, 8, 12, 2, 5, 10, 3, 5, 11, 3, 8, 15, 3, 14, 6, 3, 7, 0, 4, 3, 13, 4, 2, 13, 4, 4, 0, 5, 9, 6, 5, 1, 15, 5, 12, 11, 6 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`1` `23` `456` `789A` `BCDEF` `101112...`
	MATHEMATICA	`t = Flatten[ IntegerDigits[ Range[1900], 16]]; t[[Table[n(n + 1)/2, {n, 100}]]]`
	CROSSREFS	`Cf. A104606, A104607, A104608, A104609, A104610, A104611, A104612, A104613, A091425, A104614, A104615, A104616, A104617, A104618, A104620.` `Sequence in context: A079552 A025206 A049989 this_sequence A105333 A126234 A130484` `Adjacent sequences: A104616 A104617 A104618 this_sequence A104620 A104621 A104622`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 16 2005`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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