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A316853 Consider integer triangles as listed in rows of table A316841. Sequence gives 16*area^2 for these triangles in the same order. 5
3, 15, 48, 63, 35, 128, 243, 135, 320, 63, 240, 495, 768, 275, 231, 576, 975, 99, 384, 819, 1344, 1875, 455, 1008, 351, 896, 1575, 2304, 143, 560, 1215, 2048, 2975, 3888, 735, 675, 1536, 2499, 495, 1280, 2295, 3456, 4655, 195, 768, 1683, 2880, 4275 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..3000

FORMULA

a(n) = 16*s*(s-a)*(s-b)*(s-c) where s = A316851(n)/2, and a,b,c are A316843(n), A316844(n), A316845(n).

CROSSREFS

Cf. A316842, A316851, A316843, A316844, A316845.

Sequence in context: A296799 A328111 A135622 * A061316 A124161 A089580

Adjacent sequences:  A316850 A316851 A316852 * A316854 A316855 A316856

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 23 2018

STATUS

approved

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Last modified August 14 01:40 EDT 2020. Contains 336473 sequences. (Running on oeis4.)