今日はワインを飲んだ。この前家で飲んだのとは大違い。おいしかった。

Surprisingly there are only three numbers that can be written as the sum of fourth powers of their digits:

In England the currency is made up of pound, ￡, and pence, p, and there are eight coins in general circulation:

The product 7254 is unusual, as the identity, 39 x 186 = 7254, containing multiplicand, multiplier, and product is 1 through 9 pandigital.

The Fibonacci sequence is defined by the recurrence relation: