23878

Appears in sequences

• Numbers with multiplicative persistence value 6.at n=25A046515
• Rounded volume of a regular octahedron with edge length n.at n=37A071400
• G.f.: (21+98*x+91*x^2+21*x^3+x^4)/(1-x)^5.at n=6A160768
• G.f.: exp( Sum_{n>=1} 2^A090740(n) * x^n/n ) where A090740(n) = highest exponent of 2 in 3^n-1.at n=26A182000
• Semiprimes that are the sum of 10 consecutive primes.at n=29A185347
• Composite numbers whose multiplicative persistence is 6.at n=24A199996
• Shifts 4 places left under binomial transform.at n=17A275934
• Number of nX5 0..1 arrays with every element unequal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=11A317812
• Number T(n,k) of n-step walks on cubic lattice starting at (0,0,0), ending at (x,y,z) with x=k, remaining in the first (nonnegative) octant and using steps (0,0,1), (0,1,0), (1,0,0), (-1,1,1), (1,-1,1), and (1,1,-1); triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=41A328297
• Triangle read by rows: T(m,n) is the number of simple paths for a Racetrack car (using Moore neighborhood) with initial velocity zero, going from one corner to the diagonally opposite corner on an m X n grid, 1 <= n <= m.at n=13A351106