29130

Appears in sequences

• Averages of twin primes such that p1*p2 -+ AverageTwinPrime are primes.at n=9A154668
• a(n) = Sum_{k=1..n} F(n mod k) where F = A000045, the Fibonacci numbers.at n=42A198259
• Number of (n+1) X (n+1) 0..1 arrays with the sum of each 2 X 2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=2A235729
• Number of (n+1)X(3+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=2A235731
• T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.at n=12A235736
• Prime sieve of Champernowne constant A033307.at n=47A246022
• Numbers k such that k is the average of four consecutive primes k-7, k-1, k+1 and k+7.at n=27A258879
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 377", based on the 5-celled von Neumann neighborhood.at n=34A271463
• Expansion of 1/(1 - Sum_{k>=1} x^prime(prime(k))).at n=56A281422