65625

Appears in sequences

• Number of singular n X n rational (0,1)-matrices.at n=4A000410
• Triangle of coefficients in expansion of (1+5x)^n.at n=33A013612
• 9-automorphic numbers ending in 5: final digits of 9*n^2 agree with n.at n=4A030995
• Triangle whose (i,j)-th entry is 5^(i-j)*binomial(i,j).at n=30A038243
• Number of labeled pure 2-complexes on n nodes (0-simplexes) with 5 2-simplexes and 13 1-simplexes.at n=1A054562
• Triangle of coefficients of polynomials (rising powers) useful for convolutions of A000204(n+1), n >= 0 (Lucas numbers).at n=19A061189
• a(n) = 5^n mod n^5.at n=9A066609
• a(n) = n^n*binomial(n+2, 2).at n=5A081133
• 5th binomial transform of (0,0,1,0,0,0, ...).at n=7A081135
• Hypotenuses for which there exist exactly 5 distinct Pythagorean triangles.at n=14A084649
• a(n) = 5^(n-1)*n*(n+1)/2.at n=6A084902
• n^10 mod 10^n.at n=4A087355
• Expansion of x/((1+5x)(1-10x)).at n=6A091903
• Partial sum of centered tetrahedral numbers A005894.at n=24A132366
• Numbers with exactly 3 distinct odd prime divisors {3,5,7}.at n=31A147576
• Numbers k such that the sum of prime factors of k (counted with multiplicity) equals five times the largest prime divisor of k.at n=28A212863
• Triangle S(n,k) by rows: coefficients of 5^((n-1)/2)*(x^(1/5)*d/dx)^n when n is odd, and of 5^(n/2)*(x^(4/5)*d/dx)^n when n is even.at n=33A223171
• Triangle S(n,k) by rows: coefficients of 5^(n/2)*(x^(4/5)*d/dx)^n when n=0,2,4,6,...at n=19A223530
• Main diagonal of Unlucky array: a(n) = A255543(n,n).at n=41A255549
• Numbers n such that n = Sum_{j>=1} c(j) where c(0) = n, c(j) = floor(c(j-1)/10^k)*(c(j-1) mod 10^k) for j>0, and k is half the number of digits of n, rounded up if the number of digits of n is odd.at n=10A258584