18052
domain: N
Appears in sequences
- Bishops on a 2n+1 X 2n+1 board (see Robinson paper for details).at n=6A005632
- Number of paraffins.at n=33A006001
- a(n) = Sum_{k=1..n} d(k)*prime(k), where d(k) = A001223.at n=42A064009
- Number of partitions p of n for which Odd(p) = Odd(p') (mod 4), where p' is the conjugate of p.at n=42A097566
- Triangle read by rows: coefficient of x^n in the power series of x/(1 - m*x - x^2 + x^3 - x^5) in row n, column m=1..n+2.at n=34A117744
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 499", based on the 5-celled von Neumann neighborhood.at n=28A272562
- Number of achiral m-color cyclic compositions of n (that is, number of cyclic compositions of n with reflection symmetry where each part of size m can be colored with one of m colors).at n=17A308747
- Positions of 0's in A330314.at n=12A330325
- Records of A038804: (Smallest prime > 10^n) - (largest prime < 10^n).at n=24A331834
- Number of permutations p of [n] such that |p(i) - p(i-1)| <= 2 and |p(i) - p(i-2)| <= 3.at n=27A333833
- Numbers that are the sum of eight fourth powers in eight or more ways.at n=21A345583
- Numbers that are the sum of eight fourth powers in nine or more ways.at n=6A345584
- Numbers that are the sum of eight fourth powers in exactly nine ways.at n=4A345841