id:A104613 - OEIS Search Results

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Write the natural numbers in base 9 in a triangle with k digits in the k-th row, as shown below. Sequence gives the leading diagonal.

+0
16

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

	OFFSET	`1,2`
	COMMENT	`1` `23` `456` `7810` `11121` `314151...`
	MATHEMATICA	`t = Flatten[ IntegerDigits[ Range[1800], 9]]; t[[Table[n(n + 1)/2, {n, 105}]]]`
	CROSSREFS	`Cf. A104606, A104607, A104608, A104609, A104610, A104611, A104612, A091425, A104614, A104615, A104616, A104617, A104618, A104619, A104620.` `Sequence in context: A156695 A154924 A071105 this_sequence A113565 A038023 A008954` `Adjacent sequences: A104610 A104611 A104612 this_sequence A104614 A104615 A104616`
	KEYWORD	`base,nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 16 2005`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

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