177510

Appears in sequences

• Solution of the complementary equation a(n) = 3*a(n-1) + b(n-1) - n, where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=11A295137
• Number of sets of nonempty words over binary alphabet with a total of n letters of which 2 are the first letter.at n=30A360650