80333
domain: N
Appears in sequences
- Number of n X n binary arrays with all ones connected only in a 1101-0111-0100 pattern in any orientation.at n=7A146855
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-0111-0100 pattern in any orientation.at n=16A146857
- Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1101-0111-0100 pattern in any orientation.at n=17A146857
- Expansion of x^2*(1-x^2)*(1-3*x^2)/(1-x-5*x^2+4*x^3+5*x^4-3*x^5).at n=19A203837
- a(n+5) = a(n+4)+a(n+3)+a(n+2)+a(n+1)+2*a(n) with a(0)=2, a(1)=1, a(2)=5, a(3)=10, a(4)=20.at n=16A226311
- 11-gonal numbers which are products of three distinct primes.at n=35A354446
- Centered heptagonal numbers which are sphenic numbers.at n=17A360183