id:A155190 - OEIS Search Results

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Non-triangular numbers having a unique representation as p + t, where p is prime and t is a triangular number.

+0
1

2, 4, 7, 9, 16, 25, 27, 42, 54, 61, 63, 70, 75, 87, 90, 121, 126, 129, 135, 186, 211, 246, 315, 333, 345, 396, 405, 540, 556, 690, 717, 801, 924, 960, 1080, 1863, 2376, 2826, 3900, 6210, 8316 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Conjectured to be finite. The prime terms are in A065397.`
	EXAMPLE	`n=p+t: 2=2+0; 4=3+1; 7=7+0; 9=3+6; 16=13+3; 25=19+6; 27=17+10; 42=41+1; 54=53+1`
	CROSSREFS	`A132399, A154752` `Sequence in context: A097433 A110078 A085800 this_sequence A153776 A005625 A067785` `Adjacent sequences: A155187 A155188 A155189 this_sequence A155191 A155192 A155193`
	KEYWORD	`nonn`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), Jan 21 2009`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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