A289221 Areas of integer-sided triangles whose area equals 5 times their perimeter.

540, 600, 630, 660, 750, 810, 840, 900, 930, 1050, 1080, 1320, 1380, 1500, 1560, 1590, 1740, 2040, 2070, 2280, 2310, 2520, 2580, 2970, 3150, 3240, 3720, 4020, 4350, 4530, 4620, 5460, 6270, 6300, 7260, 7560, 7800, 7980, 11730, 12210, 14040, 18870, 22260, 27030, 27300, 52530, 103020

Offset: 1

Author

Zhining Yang, Jun 28 2017

Keywords

• fini
• full
• nonn

Comments

There are no further terms.

Examples

			The areas 540,600,630,660,750, ... pertain respectively to triangles with sides (30,39,39), (30,40,50), (28,45,53), (26,51,55), (25,60,65)...., equal 5 times their perimeter 108,120,126,132,150,...
		

Crossrefs

Cf. A098030, A289218, A289219, A289220.

A row of the triangle in A290451.