66354

Appears in sequences

• Numbers k such that 3^k (mod 2^k) is prime.at n=26A178995
• Number of (n+1) X (1+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.at n=8A232031
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.at n=36A232038
• Triangle read by rows: Kreweras's "Rule A_4 left thickness" numbers.at n=46A259099
• Total number of positive integers < 10^n with multiplicative digital root value 4.at n=7A263472
• Number of 4Xn 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=9A281059