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A086909 Middle side of the first primitive d-arithmetic triangle, where d=A072330(n). 9
4, 26, 28, 52, 76, 98, 124, 134, 158, 148, 172, 206, 218, 266, 244, 316, 292, 362, 388, 388, 364, 364, 386, 398, 518, 556, 494, 532, 556, 508, 532, 602, 602, 628, 724, 676, 758, 746, 734, 854, 916, 806, 868, 916, 844, 892, 866, 868, 1036, 1022, 988, 964, 974 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

J. A. MacDougall, "Heron Triangles With Sides In Arithmetic Progression", Journal of Recreational Mathematics 31(3) 2002-2003, pp. 192-194.

LINKS

Table of n, a(n) for n=1..53.

CROSSREFS

Cf. A072330, A072360, A089019, A089020, A096672, A096673, A096674.

Sequence in context: A063802 A276266 A276268 * A046963 A022386 A059178

Adjacent sequences:  A086906 A086907 A086908 * A086910 A086911 A086912

KEYWORD

nonn

AUTHOR

Lekraj Beedassy, Sep 19 2003

EXTENSIONS

Extended by Ray Chandler, Jul 03 2004

STATUS

approved

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Last modified May 24 09:41 EDT 2019. Contains 323529 sequences. (Running on oeis4.)