20830

Appears in sequences

• Numerators of continued fraction convergents to sqrt(7).at n=14A041008
• Smallest composite that when added to sum of prime factors reaches a prime after n iterations.at n=41A050710
• Number of Boolean functions of n variables and rank 4 from Post class F(5,inf).at n=5A051376
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (1, -1, 1), (1, 0, 0), (1, 1, 0)}.at n=8A150119
• x-values in the solution to x^2 - 7*y^2 = -3.at n=7A202637
• Number of 4Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 4Xn array.at n=11A219521
• Numerators of the other-side convergents to sqrt(7).at n=13A259597
• Twice-partitioned numbers where the first partition is constant.at n=26A279787
• First differences of A307632.at n=37A348773
• a(n) = A348773(2*n).at n=18A348775
• Number of integer partitions of n of whose permutations do not all have distinct runs.at n=37A351203
• Nonnegative integers k such that k! mod nextprime(k) is larger than k.at n=17A360805