A122405 Numbers of the form Product_i b_i^e_i, where the b_i are all distinct values > 1 and the e_i are a permutation of the b_i.
1, 4, 27, 72, 108, 256, 800, 1024, 2304, 3125, 5184, 6272, 6912, 9216, 10368, 12500, 16384, 18432, 20736, 21600, 27648, 30375, 36000, 41472, 46656, 48600, 62208, 84375, 102400, 121500, 124416, 157464, 169344, 186624, 204800, 209952, 225000
Offset: 1
Keywords
Examples
2^2 * 3^4 * 4^3 = 20736, so 20736 is in the sequence.
Crossrefs
Cf. A122406.