40951

Appears in sequences

• a(n) = 10^n - 9^n.at n=5A016189
• a(n) = (n+1)^5 - n^5.at n=9A022521
• Numerators of continued fraction convergents to sqrt(887).at n=7A042714
• An 11th-order Fibonacci sequence: a(n) = a(n-1) + ... + a(n-11).at n=23A127624
• a(n) = 10*2^(n-1) - 9.at n=12A139634
• a(n) = 10^n mod 9^n.at n=5A139739
• Numbers expressible as the difference of two nonnegative fifth powers.at n=38A152045
• Difference of two positive 5th powers.at n=30A181124
• Monotonic ordering of nonnegative differences 10^i-3^j, for 40>=i>=0, j>=0.at n=25A192160
• L.g.f.: Sum_{n>=1} a(n)*x^n/n = Sum_{n>=1} x^n/n * exp( Sum_{k>=1} sigma(n*k)*x^(n*k)/k ).at n=24A203321
• a(n) = floor(5*prime(n)^2 / 4).at n=41A246010
• Positions of records in A194943.at n=32A362850
• Centered 10-gonal numbers which are products of two primes.at n=37A367792
• Squarefree terms of A372894 whose prime factors are neither elite (A102742) nor anti-elite (A128852).at n=17A372896
• Number of palindromic n-ary words of length n that include the last letter of their respective alphabet.at n=10A378203