81780
domain: N
Appears in sequences
- Number of compositions of n into nonprime numbers.at n=29A052284
- a(n) = 3*n^3 + n^2 - 4*n.at n=30A083127
- The fourth row of the ED1 array A167546.at n=22A167547
- Number of three-choice polygons by area.at n=10A173412
- Numbers k such that 4^k + 15 is prime.at n=36A253773
- a(n) = 108*n^2 - 104*n + 20 (n>=1).at n=27A304835