384984
domain: N
Appears in sequences
- Number of length n+4 0..4 arrays with no five consecutive elements with pattern ababa or abbba (with a!=b) and new values 0..4 introduced in 0..4 order.at n=6A244696
- Consider all 3 X 3 matrices M whose entries are the n-th to (n+8)-th primes prime(n), ..., prime(n+8), in any order. a(n) is the sum of the number of M such that det(M) is divisible by prime(n+i), for i from 0 to 8.at n=1A339105