[seqfan] definition of A144927

[Richard Mathar]

I cannot reproduce http://oeis.org/A144927 but get
7,
104,
1455,
20272,
282359,
(basically A001921)
The definition is "numbers n such that 3*n^2+3*n+1 is a perfect square").
Any way to rescue the terms?

RJM