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 A072360 One-sixth the area of the smallest primitive d-arithmetic triangle, where d=A072330(n). 7

%I

%S 1,26,21,91,95,196,341,536,790,259,559,1030,654,2926,549,4029,1241,

%T 4706,5529,5335,1729,1001,1544,2786,9324,12649,4446,8645,9591,1651,

%U 3059,10234,3010,3925,19005,2535,16676,14174,8074,25620,33205,8060

%N One-sixth the area of the smallest primitive d-arithmetic triangle, where d=A072330(n).

%C Such a triangle has middle side 2*x'.

%F a(n) = x'*y'/2, where (x', y') is the fundamental solution to x^2 - 3*y^2 = d^2, where d=A072330(n).

%Y Cf. A072330, A086909, A089019, A089020, A096672, A096673, A096674.

%K nonn

%O 1,2

%A _Lekraj Beedassy_, Jul 18 2002

%E Edited, corrected and extended by _Ray Chandler_, Jul 03 2004

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Last modified August 20 18:56 EDT 2019. Contains 326154 sequences. (Running on oeis4.)