Between each pair of terms in this sequence is the amount the sequence is decreasing by. The 𝒏th term refers to a term's position in the sequence, for example, the first term has 𝒏 = 1, the second ...

The record had stood for more than a decade before it was finally broken last month. On July 24, Markus Frind, Paul Jobling, and Paul Underwood announced that they had discovered the first sequence ...