def getArray(fromMin, toMax, center):
    mixedArray = []
    centerMax = []
    centerMin = []
    maxArrayCount = 0

    for x in range(center, toMax):
        centerMax.append(x)
    for y in range(center, fromMin, -1):
        centerMin.append(y)

    if len(centerMax) > len(centerMin):
        maxArrayCount = len(centerMax)
    else:
        maxArrayCount = len(centerMin)

    for i, x in enumerate(range(0, maxArrayCount)):
        try:
            mixedArray.append(centerMax[i])
        except IndexError:
            pass
        try:
            mixedArray.append(centerMin[i])
        except IndexError:
            pass
        continue
    return list(dict.fromkeys(mixedArray))


print(getArray(25, 50, 40))