390624

Appears in sequences

• a(n) = 5^n - 1.at n=8A024049
• Numbers that are repdigits in base 5.at n=32A048330
• Numbers n such that Sum_{k=1..n} d(k) is an integer where d(k) is the decimal fraction 0.k (e.g. d(999)=0.999).at n=9A054464
• Numbers k such that Sum_{j=1..k} d(j) is an integer where d(j) is the decimal fraction 0.2j (e.g., d(14) = 0.28).at n=8A054465
• Positive numbers which are one less than a perfect square that is also another power.at n=32A062965
• Jordan function J_8(n).at n=4A069093
• Inverse modulo 2 binomial transform of 5^n.at n=8A100738
• a(n) = 0^n + 5^n - 1.at n=8A103455
• a(n) = n^4 - 1.at n=24A123865
• Difference of two positive 8th powers.at n=10A181127
• Numbers of the form i*5^j-1 (i=1..4, j >= 0).at n=32A181287
• Monotonic ordering of nonnegative differences 5^i-6^j, for 40>= i>=0, j>=0.at n=37A192193
• Monotonic ordering of nonnegative differences 5^i-7^j, for 40>= i>=0, j>=0.at n=33A192195
• Monotonic ordering of nonnegative differences 5^i-8^j, for 40>= i>=0, j>=0.at n=32A192197
• Monotonic ordering of nonnegative differences 5^i-9^j, for 40>= i>=0, j>=0.at n=30A192199
• Monotonic ordering of nonnegative differences 5^i-10^j, for 40>= i>=0, j>=0.at n=29A192201
• Order of Fibonacci group F(n,4) (or 0 if the group is infinite).at n=24A202626
• a(n) = n^8 - 1.at n=4A258809
• Integers k such that k and k+1 are products of 8 primes.at n=8A268469
• a(n) = 5^n-(-1)^n.at n=8A274072