18707

Appears in sequences

• Multiplicity of highest weight (or singular) vectors associated with character chi_11 of Monster module.at n=45A034399
• Numerators of continued fraction convergents to sqrt(523).at n=8A042000
• Interprimes (A024675) which are of the form s*prime, s=13.at n=10A075288
• Having specified two initial terms, the "Half-Fibonacci" sequence proceeds like the Fibonacci sequence, except that the terms are halved before being added if they are even.at n=36A120424
• Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0100-1110-0111-0010 pattern in any orientation.at n=11A146912
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0100-1110-0111-0010 pattern in any orientation.at n=24A146914
• Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 0100-1110-0111-0010 pattern in any orientation.at n=25A146914
• a(0) = 1, a(1) = 3; a(n+2) = (a(n+1) + a(n))/2 if 2 divides (a(n+1) + a(n)), a(n+2) = a(n+1) + a(n) otherwise.at n=36A151749
• Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} (1 + x^(i_1*i_2*i_3*i_4)).at n=40A321567