|
Search: id:A072360
|
|
|
| A072360 |
|
One-sixth the area of the smallest primitive d-arithmetic triangle, where d=A072330(n). |
|
+0
8
|
|
| 1, 26, 21, 91, 95, 196, 341, 536, 790, 259, 559, 1030, 654, 2926, 549, 4029, 1241, 4706, 5529, 5335, 1729, 1001, 1544, 2786, 9324, 12649, 4446, 8645, 9591, 1651, 3059, 10234, 3010, 3925, 19005, 2535, 16676, 14174, 8074, 25620, 33205, 8060
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
Such a triangle has middle side 2*x'.
|
|
FORMULA
|
a(n) = x'*y'/2, where (x', y') is the fundamental solution to x^2 - 3*y^2 = d^2, where d=A072330(n).
|
|
CROSSREFS
|
Cf. A072330, A086909, A089019, A089020, A096672, A096673, A096674.
Sequence in context: A131083 A040652 A154295 this_sequence A093538 A022982 A023468
Adjacent sequences: A072357 A072358 A072359 this_sequence A072361 A072362 A072363
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Lekraj Beedassy (blekraj(AT)yahoo.com), Jul 18 2002
|
|
EXTENSIONS
|
Edited, corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Jul 03 2004
|
|
|
Search completed in 0.002 seconds
|
