61456

Appears in sequences

• Theta series of D8 lattice with respect to midpoint of edge.at n=19A045820
• a(0) = 1, a(1) = 2; for n>=2 a(n) is the number of degree-n reducible polynomials over GF(2).at n=16A058766
• a(n) = ((1+4*sqrt(2))*(2+sqrt(2))^n + (1-4*sqrt(2))*(2-sqrt(2))^n)/2.at n=8A164298
• Sum of prime divisors of n (with repetition) is one less than the sum of prime divisors (with repetition) of n+1.at n=39A228126
• Let n be even; m = n/2 and p a prime such that p<=m with n-p nonprime. The sequence contains the successive positive maxima of values n with L = primepi(m-1)-primepi(p+1)> 0.at n=18A293858
• Number of cubic graphs on n unlabeled nodes with half-edges.at n=14A333163
• Numbers k such that A001414(k+1) = A001414(k)+1 and A001414(k)^2+3*A001414(k)+1 is prime.at n=16A352581