A050515 Arithmetic progression of at least 5 terms having the same value of phi start at these numbers.
353640, 550860, 583200, 707280, 1060920, 1101720, 1166400, 1414560, 1609260, 1652580, 1749600, 1768200, 2121840, 2203440, 2332800, 2475480, 2754300, 2829120, 2916000, 3182760, 3196860, 3218520, 3305160, 3499200, 3536400
Offset: 1