A117051 - OEIS

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A117051

Enneagonal numbers for which the sum of the digits is also a enneagonal number.

0, 1, 9, 261, 969, 1350, 6666, 7944, 10071, 13299, 17466, 24486, 33369, 36159, 39804, 42846, 46806, 54375, 57921, 66309, 75264, 80484, 111696, 116754, 128544, 135339, 153825, 167316, 175056, 181374, 204369, 226950, 235950, 243276, 252591, 260169 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	EXAMPLE	`1350 is in the sequence because (1) it is a enneagonal number and (2)the sum of its digits 1+3+5+0=9 is also a enneagonal number`
	CROSSREFS	`Cf. A001106.` `Sequence in context: A072158 A001823 A117796 * A173985 A189643 A003387` `Adjacent sequences: A117048 A117049 A117050 * A117052 A117053 A117054`
	KEYWORD	`base,nonn`
	AUTHOR	`Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.