22479

Appears in sequences

• Recurrence derived from the decimal places of sqrt(2). a(0)=0, a(i+1)=position of first occurrence of a(i) in decimal places of sqrt(2).at n=14A098326
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 233", based on the 5-celled von Neumann neighborhood.at n=31A270978
• Numbers k such that k![4] + 2 is prime, where k![4] = A007662(k) = quadruple factorial.at n=41A283553
• Sum of all squarefree semiprimes with greater prime factor prime(n).at n=16A339194