18948
domain: N
Appears in sequences
- Numerators of continued fraction convergents to sqrt(133).at n=10A041242
- a(n) = (2*n^3 + 9*n^2 + n + 24) / 6.at n=37A160805
- Number of n-step self-avoiding walks on a line, where step X skips X - 1 spaces.at n=19A175941
- Numbers n such that prime(n) and phi(n) have the same decimal digits.at n=39A243462
- Number of length 3 1..(n+1) arrays with every leading partial sum divisible by 2 or 3.at n=38A257065
- Numbers that are the sum of eight fourth powers in eight or more ways.at n=24A345583
- Numbers that are the sum of eight fourth powers in exactly eight ways.at n=16A345840
- Number of n X n symmetric 0-1 matrices where rows are sorted lexicographically and row sums are nondecreasing.at n=6A351158
- a(n) is the minimal permanent of an n X n matrix using the integers 0 to n^2 - 1.at n=4A358486