31825

Appears in sequences

• Numerators of continued fraction convergents to sqrt(789).at n=7A042520
• Numbers n for which there are exactly six k such that n = k + (product of nonzero digits of k).at n=23A096927
• Let S denote the palindromes in the language {0,1,2,...,n-1}*; a(n) = number of words of length 4 in the language SS.at n=24A187277
• Number of Dyck n-paths all of whose ascents have lengths equal to 1 (mod 10).at n=18A212390
• Equals two maps: number of 2 X n binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 2 X n array.at n=12A220407
• Numbers n such that A242719(n) = (prime(n))^2+1 and A242720(n) - A242719(n) = 2*(prime(n)+1).at n=27A246748
• Expansion of Sum_{k>=0} (x/(1 - x))^(k^3).at n=19A280351
• a(n) is the smallest b > 1 such that b^n - (b-1)^n has all divisors d == 1 (mod n).at n=31A321576
• a(n) = Sum_{k=0..floor(4*n/11)} binomial(k+3,4*n-11*k).at n=44A390041