330289

Properties

Appears in sequences

• Primes in base 10 that remain primes in seven bases b, 2<=b<=10, expansions interpreted as decimal numbers.at n=3A052027
• Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 3 ones in any 4 X 4 X 4 subtriangle.at n=3A153924
• Prime numbersat n=28430