198469

Properties

Appears in sequences

• a(n) = a(n-1) + a(n-2) + n^2 for n >= 3, a(1)=2, and a(2)=5.at n=19A179992
• Number of (n+2) X 9 0..1 matrices with each 3 X 3 subblock idempotent.at n=20A224558
• Primes of the form n^2-n-1 (for some n) such that p^2-p-1 is also prime.at n=33A237642
• Prime numbersat n=17862