391250

Appears in sequences

• Sums of two distinct powers of 5.at n=32A038474
• Sums of two powers of 5.at n=40A055237
• a(n) = n^4*Product_{distinct primes p dividing n} (1+1/p^4).at n=24A065960
• Numbers k such that core(k) = ceiling(sqrt(k)) where core(k) is the squarefree part of k (the smallest integer such that k*core(k) is a square).at n=23A069187
• a(n) = n^2*(n^2+1).at n=25A071253
• Number of elements of GF(5^n) with trace 0 and subtrace 1.at n=9A074007
• Number of elements of GF(5^n) with trace 0 and subtrace 2.at n=9A074008
• Array read by rows: T(n,k) is the number of solutions to the equation Sum_{i=1..n} x_i^2 == k (mod 5) with x_i in 0..4, where n >= 0 and 0 <= k <= 4.at n=46A330607
• Array read by rows: T(n,k) is the number of solutions to the equation Sum_{i=1..n} x_i^2 == k (mod 5) with x_i in 0..4, where n >= 0 and 0 <= k <= 4.at n=49A330607
• Numbers that are the sum of eight fifth powers in four or more ways.at n=0A345612
• Numbers that are the sum of eight fifth powers in exactly four ways.at n=0A346329
• a(n) = n^4 * Sum_{d^2|n} 1 / d^4.at n=24A351602
• Sum of the 4th powers of the divisor complements of the odd proper divisors of n.at n=24A352050
• a(n) = n^4*sigma_4(n).at n=5A386784