id:A077368 - OEIS Search Results

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Triangular numbers whose external digits as well as internal digits form triangular numbers.

+0
5

0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 231, 435, 465, 666, 1035, 2211, 3916, 4005, 6216, 6786, 19900, 41905, 46665, 48205, 162165, 171405, 200661, 222111, 329266, 400065, 1057785, 1646205, 2003001, 2318781, 2943951, 10628355 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Common members of A077366 and A077367.`
	CROSSREFS	`Cf. A077366, A077367.` `Sequence in context: A025731 A077367 A077366 this_sequence A069693 A069694 A069695` `Adjacent sequences: A077365 A077366 A077367 this_sequence A077369 A077370 A077371`
	KEYWORD	`base,easy,nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 06 2002`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 28 2007`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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