id:A112352 - OEIS Search Results

Search: id:A112352

Displaying 1-1 of 1 results found.

page 1

Triangular numbers that are the sum of two distinct positive triangular numbers.

+0
2

21, 36, 55, 66, 91, 120, 136, 171, 231, 276, 351, 378, 406, 496, 561, 666, 703, 741, 820, 861, 946, 990, 1035, 1081, 1176, 1225, 1326, 1378, 1431, 1485, 1540, 1596, 1653, 1711, 1770, 1891, 1953, 2016, 2080, 2211, 2278, 2346, 2556, 2701, 2775, 2850, 2926 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Subsequence of A089982: it doesn't require the two positive triangular numbers to be distinct.`
	EXAMPLE	`36 is a term because 36 = 15 + 21 and these three numbers are distinct triangular numbers (A000217(8) = A000217(5) + A000217(6)).`
	CROSSREFS	`Cf. A000217 (triangular numbers), A112353 (triangular numbers that are the sum of three distinct positive triangular numbers), A089982.` `Sequence in context: A138227 A155710 A001491 this_sequence A067598 A043683 A043572` `Adjacent sequences: A112349 A112350 A112351 this_sequence A112353 A112354 A112355`
	KEYWORD	`nonn`
	AUTHOR	`Rick L. Shepherd (rshepherd2(AT)hotmail.com), Sep 05 2005`

page 1

Search completed in 0.002 seconds

Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research