37909
domain: N
Appears in sequences
- Numbers n such that mu(n) + mu(n+1) + mu(n+2) + mu(n+3) + mu(n+4) + mu(n+5) + mu(n+6) = 6.at n=22A082967
- Long leg of primitive Pythagorean triangles having legs that add up to a square, sorted on hypotenuse.at n=28A089548
- Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (1, -1), (1, 0), (1, 1)}.at n=8A151300
- a(n) = 52*n^2 + 1.at n=27A158644
- Least positive integer k such that both k and k*n belong to the set {m>0: prime(m)+2 is prime with prime(prime(m)+2) = prime(prime(m))+6}.at n=29A261528
- Partial sums of A037276.at n=45A287883
- Nonprime squarefree numbers whose prime indices all have the same Omega (A001222) and the same sum of prime indices (A056239).at n=19A327908
- Semiprimes k such that k+4, k+6, k+9, k+10 and k+14 are also semiprimes.at n=11A360666
- Numbers k such that k + 4, k + 6, k + 9, k + 10, and k + 14 are all semiprimes, where 4, 6, 9, 10, 14 are the first 5 semiprimes.at n=29A365240