217361

Properties

Appears in sequences

• Primes at which the difference pattern X,2,4,2,Y (X and Y >= 6) occurs in A001223.at n=32A052165
• Number of set partitions of [n] such that seven is a multiple of each block size.at n=16A275425
• Number of nX2 0..2 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=6A282155
• T(n,k)=Number of nXk 0..2 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=29A282159
• T(n,k)=Number of nXk 0..2 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=34A282159
• p-INVERT of (0,1,0,1,0,1,...), where p(S) = 1 - S - 2 S^2 + 2 S^3.at n=18A291250
• Primes of the form (2*p^2 + 1)/3 where p is a prime > 3.at n=29A362225
• Prime numbersat n=19394