25156

Appears in sequences

• Numbers k such that k | 8^k + 8.at n=26A015897
• a(n) = (27*n^2 + 9*n + 2)/2.at n=43A093485
• Numbers n, not divisible by 3, 5, 7 or 11, such that A000203(n)-n-1 and 2*n+1-A000203(n) are prime numbers.at n=11A180268
• Smallest m such that the n-th odd prime is the smallest prime for all decompositions of 2*m into two primes.at n=40A208662
• a(n) = Sum_{k=0..2^n-1} k*A261015(n,k).at n=11A261016
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 822", based on the 5-celled von Neumann neighborhood.at n=35A272847
• Number of nX3 0..1 arrays with every element equal to 0, 1 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.at n=10A301959
• Concatenation of sum n+(n+1) and product n*(n+1) in decimal.at n=12A337148
• a(n) = Sum_{k=0..n} (k+1) * binomial(2*k+1,2*n-2*k).at n=9A391891