191406

Appears in sequences

• Number of base 32 n-digit numbers with adjacent digits differing by one or less.at n=9A126386
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + 2*b(n-1) + b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, and (a(n)) and (b(n)) are increasing complementary sequences.at n=20A294561
• Oblong composite numbers m such that beta(m) = tau(m)/2 - 1 where beta(m) is the number of Brazilian representations of m and tau(m) is the number of divisors of m.at n=24A326384
• a(n) = Sum_{k=0..floor(n/3)} binomial(2*n-5*k,n-3*k).at n=10A360152