108421

Properties

Appears in sequences

• Quintan primes: p = (x^5 + y^5)/(x + y).at n=31A002650
• Primes p such that p, p+18, p+36 are consecutive primes.at n=20A052189
• Number of arrays of 4 integers in -n..n with sum zero and equal numbers of elements greater than zero and less than zero.at n=29A201812
• Number of (1+1)X(n+1) 0..2 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..1+1} nondecreasing.at n=11A233375
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 670", based on the 5-celled von Neumann neighborhood.at n=8A273393
• Number of plane trees with n nodes where the sequence of branches directly under any given node is a chain of multisets.at n=16A319379
• Prime numbersat n=10313