19870
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 MFI = ZSM-5 Nan[AlnSi96-nO192] starting with a T8 atom.at n=13A019165
- Expansion of (1+3*x+9*x^2+12*x^3+11*x^4+3*x^5+x^6)/((1-x)^2*(1-x^2)^2*(1-x^3)).at n=18A055383
- Numbers in ascending order formed by using all the digits of the next n numbers.at n=32A081991
- Zero together with the partial sums of A064412.at n=20A275112
- Minimum number k such that the k-th tetrahedral number is not smaller than n!.at n=14A308852
- a(n) = Sum_{d|n} d * 3^(n/d-1).at n=9A359189