22785
domain: N
Appears in sequences
- Powers of fifth root of 6 rounded to nearest integer.at n=28A018130
- Powers of fifth root of 6 rounded up.at n=28A018131
- a(n) = 49*(n-1)*(n-2)/2.at n=29A027469
- Triangle read by rows: T(n, k) = [x^k] x*Pochhammer(n + x, n)/(n + x).at n=24A038455
- Limiting sequence formed by rows of A094504 read backwards: rightmost floor(n/2)+1 terms of row n in table A094504.at n=11A096322
- Numbers k such that 2*k-1, 4*k-1, 6*k-1 and 8*k-1 are primes.at n=18A124487
- Numbers k such that 2*k-1, 4*k-1, 6*k-1, 8*k-1 and 10*k-1 are primes.at n=4A124488
- 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, 0, 1), (0, 1, -1), (0, 1, 1), (1, 0, 0)}.at n=8A150199
- a(n) = binomial(n+1,2)*7^2.at n=30A162942
- The Wiener index of the Dutch windmill graph D(5,n) (n>=1).at n=30A180579
- Numbers n such that n!10 + 2 is prime.at n=48A204657
- Number of ways to place 4n rooks on n X n board, 4 rooks in each row and each column, multiple rooks in a cell allowed, and exactly 4 rooks below the main diagonal.at n=3A260584
- Irregular triangle read by rows: T(n, k) is the q-multinomial coefficient defined by the k-th partition of n in Abramowitz-Stegun order, evaluated at q = 2.at n=24A347485
- Odd numbers k such that sigma(k^2) > 2*k^2 and A003415(sigma(k^2)) < k^2.at n=47A347891