18815
domain: N
Appears in sequences
- Divide natural numbers in groups with prime(n) elements and add together.at n=15A034956
- Continued fraction expansion with iterated 3-fold symmetry.at n=7A089267
- Continued fraction expansion with iterated 3-fold symmetry.at n=26A089267
- Continued fraction expansion with iterated 3-fold symmetry.at n=37A089267
- a(n) = 784*n - 1.at n=23A158399
- a(n) = 24*n^2 - 1.at n=27A158544
- a(1) = 1, and for each k >=2, a(k) is the smallest number n such that n/sin(n) > a(k)/sin(a(k)), so that a(1)/sin(a(1)) > a(2)/sin(a(2)) > ... > a(k)/sin(a(k)) > ...at n=40A172445
- Number of (w,x,y,z) with all terms in {0,...,n} and max{w,x,y,z}>=2*min{w,x,y,z}.at n=11A212741
- Number of partitions p of n such that (# 1s in p) = (#1s in conjugate(p)).at n=50A240691
- The smallest positive number that when written in all bases 2 to n contains two or more adjacent equal digits.at n=12A375958
- Record high points in A386487.at n=29A386488