id:A117082 - OEIS Search Results

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Octagonal numbers for which the sum of the digits is also a octagonal number.

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0, 1, 8, 341, 1160, 4485, 6816, 9633, 12936, 16725, 20501, 25761, 30401, 36741, 42960, 64533, 81345, 90480, 131880, 143445, 168033, 181056, 208560, 238008, 253461, 269400, 302736, 338016, 375240, 414408, 434721, 455520, 520833, 590520 (list; graph; listen)

	OFFSET	`0,3`
	EXAMPLE	`1160 is in the sequence because (1) it is a octagonal number and (2)the sum of its digits 1+1+6+0=8 is also a octagonal number.`
	CROSSREFS	`Cf. A000567.` `Sequence in context: A057982 A041769 A071306 this_sequence A061458 A135067 A002781` `Adjacent sequences: A117079 A117080 A117081 this_sequence A117083 A117084 A117085`
	KEYWORD	`base,nonn`
	AUTHOR	`Luc Stevens (lms022(AT)yahoo.com), Apr 17 2006`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

AT&T Labs Research