One-sixth of the area of some primitive Heronian triangles with a distance of 2n+1 between the median and altitude points on the longest side.
60, 4620, 2024, 5984, 11480, 22960, 41580, 8096, 45920, 521640, 226884, 392920
2 seqfan posts
Sun Sep 20 00:55:28 CEST 2009 [seqfan] Re: definition of A074074