58449

Appears in sequences

• Numbers k such that 135*2^k-1 is prime.at n=31A050593
• a(n) is the least k such that (k*prime(n)#)^2 + 1, ((k+1)*prime(n)#)^2 + 1 and ((k+2)*prime(n)#)^2 + 1 are 3 primes, where prime(n)# is the n-th primorial.at n=33A098765
• Number of (n+1) X 3 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=9A204707
• Number of (n+1) X 5 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=5A204709
• Number of (n+1)X7 0..1 arrays with the permanents of all 2X2 subblocks equal and nonzero.at n=3A204711
• T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=39A204713
• T(n,k) is the number of (n+1) X (k+1) 0..1 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.at n=41A204713
• Values x of successive minima records of k = log(x)/log(d) where d runs through the positive values of x^3-round(sqrt(x^3))^2.at n=17A232536
• First row of spectral array W(1/sin(1)).at n=11A248850
• a(n) is the number of squarefree semiprimes <= 2^n.at n=18A358078