id:A033705 - OEIS Search Results

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Fancy primitive repdigit polygonal numbers (with multiplicity).

+0
4

6, 9, 22, 55, 66, 88, 111, 111, 222, 333, 444, 555, 666, 777, 888, 6666, 44444, 111111, 111111, 777777, 999999, 111111111, 777777777, 9999999999, 333333333333, 555555555555, 555555555555, 1111111111111, 1111111111111 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`M. Keith, On Repdigit Polygonal Numbers, J. Integer Sequences, Vol. 1, 1998, #6.`
	CROSSREFS	`Cf. A033705-A033707.` `Sequence in context: A043883 A112393 A006132 this_sequence A033704 A121592 A034718` `Adjacent sequences: A033702 A033703 A033704 this_sequence A033706 A033707 A033708`
	KEYWORD	`nonn`
	AUTHOR	`Mike Keith (domnei(AT)aol.com)`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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