A118489 Squares for which the product of the digits is a triangular number.

0, 1, 16, 25, 49, 100, 400, 576, 900, 1024, 1089, 1521, 2025, 2209, 2304, 2401, 2500, 2601, 2704, 2809, 3025, 3600, 4096, 4900, 5041, 5625, 6084, 6400, 7056, 8100, 9025, 9409, 9604, 9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236, 12100, 14400