20814

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 96.at n=26A031594
• Number of partitions of n into parts not of the form 15k, 15k+4 or 15k-4. Also number of partitions with at most 3 parts of size 1 and differences between parts at distance 6 are greater than 1.at n=41A035958
• a(n) = n! * Sum_{k=1..n} H(k)*(n+1-k)!, where H(k) = Sum_{j=1..k} 1/j.at n=4A109779
• Volume of right circular cone (rounded down) with the diameter of base and height equal to n.at n=42A228189
• Numbers n such that 3*4^n - 1 is prime.at n=22A272057
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 878", based on the 5-celled von Neumann neighborhood.at n=37A273741
• Consecutive states of the linear congruential pseudo-random number generator (25173*s+13849) mod 2^16 when started at s=1.at n=33A383940