38821

Properties

Appears in sequences

• Let b(1)=1, b(2)=2, b(n) = sum of digits of b(1)+b(2)+b(3)+...+b(n-1), sequence gives values of n such that b(n)=3.at n=27A084229
• Primes for which A117078(n) is equal to A117563(n) and A117563(n) is different from 0.at n=6A121155
• Primes of the form k^2 + 12.at n=29A138368
• Primes p such that p^4 - p +/- 1 are twin primes.at n=21A236952
• Primes of the form 2*n^2+30*n+13.at n=16A243889
• Number of (n+1) X (6+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=7A250727
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 425", based on the 5-celled von Neumann neighborhood.at n=40A272091
• The number of partitions of n which represent Chomp positions with Sprague-Grundy value 9.at n=62A284782
• Prime numbersat n=4090