Triangular numbers, T(m), that are four-thirds of another triangular number; T(m) such that 3*T(m) = 4*T(k) for some k.
0, 28, 5460, 1059240, 205487128, 39863443620, 7733302575180
1 seqfan posts
Sun Jan 30 23:31:23 CET 2011 [seqfan] Re: Cleaning up cross-references to recycled sequences - can this be automated?