In mathematics, a square triangular number (or triangular square number) is a number which is both a triangular number and a perfect square. There are an infinite number of square triangular numbers; the first few are 0, 1, 36, 1225, 41616, 1413721, 48024900, 1631432881, 55420693056, 1882672131025 (sequence A001110 in OEIS).
Read more about Square Triangular Number: Explicit Formulas, Pell's Equation, Recurrence Relations, Other Characterizations, Numerical Data
Famous quotes containing the words square and/or number:
“Houses haunt me.
That last house!
How it sat like a square box!”
—Anne Sexton (1928–1974)
“Of all reformers Mr. Sentiment is the most powerful. It is incredible the number of evil practices he has put down: it is to be feared he will soon lack subjects, and that when he has made the working classes comfortable, and got bitter beer into proper-sized pint bottles, there will be nothing left for him to do.”
—Anthony Trollope (1815–1882)