223041
domain: N
Appears in sequences
- Number of diagonal dissections of an n-gon into 3 regions.at n=38A033275
- Sum of squares of divisors of square numbers.at n=20A065827
- Binomial transform of [1, 5, 10, 10, 5, 1, 1, -1, 1, -1, 1, ...].at n=26A140228
- Jordan function ratio J_6(n)/J_2(n).at n=20A194532
- Odd octagonal numbers indexed by triangular numbers.at n=16A243201
- a(n) = (n-1)*(n-2)*(n+3)*(n+2)/12.at n=40A299120
- Product of the smaller primes, p, in the Goldbach partitions of 2n such that p + q = 2n, p <= q, and p,q prime (or 1 if no Goldbach partition of 2n exists).at n=42A362641