250000000000
domain: N
Appears in sequences
- a(n)=Product{k=0..n, 1+4^A010060(k)}/2.at n=22A101654
- a(n) = A112889(n)/n.at n=11A112890
- Coefficient of q^n in (1-q)^5/(1-5q); dimensions of the enveloping algebra of the derived free Lie algebra on 5 letters.at n=17A118266
- Squares that remain squares prefixed with a 2.at n=19A167036
- Squares that remain squares when prefixed with a 6.at n=20A167041
- Number of (n+2)X(n+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=2A250860
- Number of (n+2)X(3+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=2A250863
- T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column.at n=12A250868
- Numbers m whose distinct prime factors are exactly the same as the distinct prime factors of each of the numbers obtained by deleting any single digit in the decimal expansion of m.at n=24A307764
- a(n) = Product_{k=1..n} lcm(n,k) / (k * gcd(n,k)).at n=19A308944