30359

Appears in sequences

• Number of simple imperfect squared rectangles of order n up to symmetry.at n=18A002881
• Expansion of g.f. (1+2*x+3*x^2)/(1-x-x^2-x^3-x^4).at n=15A028831
• a(n) = A007290(n+2) - 1 = 2*C(n+2,3) - 1.at n=44A108766
• Numbers k such that 2*k+1, 3*k+2, 4*k+3 and 5*k+4 are primes.at n=28A138700
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1100-1111-0001 pattern in any orientation.at n=14A146853
• Number of length n 0..6 arrays with each partial sum starting from the beginning no more than one standard deviation from its mean.at n=5A244786
• T(n,k)=Number of length n 0..k arrays with each partial sum starting from the beginning no more than one standard deviation from its mean.at n=60A244788
• Number of length 6 0..n arrays with each partial sum starting from the beginning no more than one standard deviation from its mean.at n=5A244794
• Numbers k such that k and k+2 are both A000120-perfect numbers (A175522).at n=37A360639