220996

Appears in sequences

• a(n) = a(n-1) + a(n-2) + a(n-3) - a(n-4); a(0)=0, a(1)=1, a(2)=1, a(3)=1.at n=25A116201
• Number of ways to write highly composite numbers (A002182(n)) as the difference of two primes, both <= 2*A002182(n).at n=47A228945