explain why the arithmetic sequence: 1,14,27,40 contains many terms of the form 22222...22222 etc where only digit two appears. How many 2's appear in the sequence? (The nth term rule is 13n-12)
The sequence of Bell numbers, 1, 2, 5, 15 ... by consideration of the integral factors of 10 and 12: 10 has two (2, 5) ... numbers form an arithmetic sequence of the
he sequence of Bell numbers, 1, 2, 5, 15 ... by consideration of the integral factors of 10 and 12: 10 has two (2, 5) ... numbers form an arithmetic sequence of the
