def triangleNumsTo(limit): return sequence.sequenceTo(triangleNumbers, limit)
def squareNumsTo(limit): return sequence.sequenceTo(squareNumbers, limit)
def pentagonalNumsTo(limit): return sequence.sequenceTo(pentagonalNumbers, limit)
def hexagonalNumsTo(limit): return sequence.sequenceTo(hexagonalNumbers, limit)
def fibonacciTo(limit): return sequence.sequenceTo(fibonacciSequence, limit)