175000

Appears in sequences

• Triangle of coefficients in expansion of (1+5x)^n.at n=41A013612
• Triangle of coefficients in expansion of (2+5x)^n.at n=32A013621
• Triangle whose (i,j)-th entry is 5^(i-j)*binomial(i,j).at n=39A038243
• Triangle whose (i,j)-th entry is binomial(i,j)*5^(i-j)*2^j.at n=31A038244
• 5th binomial transform of (0,0,0,1,0,0,0,0,......).at n=8A081143
• a(n) = (n!)^3 * Sum_{k=1..n-1} 1/(k^3*(n-k)^2).at n=5A304655
• Triangle read by rows: T(0,0) = 1; T(n,k) = 5*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.at n=39A305837
• Triangle read by rows: T(0,0)= 1; T(n,k)= T(n-1,k) + 5*T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.at n=54A305838
• a(n) is the conjectured largest number such that both a(n) and a(n) - n are 7-smooth numbers. a(n) can be less than n. Otherwise, if no such number exists then a(n) = 0.at n=39A376924