47186

Appears in sequences

• Number of fault-free tilings of a 4 X 2n rectangle with L tetrominoes.at n=13A084481
• A recurrence relation conditioned on the primality of the preceding terms.at n=43A236768
• Number of 2 X 2 matrices with all elements in 0..n such that the sum of the elements is prime.at n=20A281550
• Number of maximal product-free subsets of {1..n}.at n=51A326496