40408

Appears in sequences

• Pentanacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4) + a(n-5), starting 1,0,0,0,1.at n=20A124313
• a(n) = (n^5 + 145*n^4 + 905*n^3 + 155*n^2 + 594*n + 120)/120.at n=12A143060
• Smallest sequence which lists the position of digits "3" in the sequence.at n=34A167453
• L.g.f.: Sum_{n>=1} (x^n/n) * Product_{d|n} (1 + n*x^d/d).at n=38A205477
• Number of length 3 0..n arrays with each partial sum starting from the beginning no more than sqrt(3) standard deviations from its mean.at n=34A244942
• Numbers k such that k^8192 + (k+1)^8192 is prime.at n=8A274237
• White to move: King, Knight and Bishop vs. King: Number of positions with mate in n.at n=7A274683
• Number of odd composites <= 10^n.at n=4A344656
• Number of regular elements in the semigroup of all binary relations on [n].at n=4A354279