38100
domain: N
Appears in sequences
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite LOV = Lovdarite K4Na12 [Be8Si28O72].18H2O starting with a T3 atom.at n=14A019141
- a(n)= 3*a(n-3) +3*a(n-6) +a(n-9).at n=23A109528
- Product of the sum of the first n^2 primes by the sum of the first (n+1)^2 primes.at n=3A202297
- Exponential (2,3)-perfect numbers: numbers m such that esigma(esigma(m)) = 3m, where esigma(m) is the sum of exponential divisors of m (A051377).at n=33A328132
- Number of lattice paths from (0,0) to (n,0) that do not go below the x-axis, and at (x,y) only allow steps (1,v) with v in {-1,0,1,...,y+1}.at n=12A333069
- Number of partitions of n that contain more nonprime parts than prime parts.at n=43A355158
- Place a point on the integer coordinates, up to |n|, along all four axial directions on a Cartesian plane, and then join a circle through every unordered triple of non-collinear points: a(n) is the number of distinct points where circles intersect.at n=3A385160