117732

Appears in sequences

• Number of matchings in graph C_{10} X P_{n}.at n=2A033522
• G.f.: 2*x*(2-2*x-3*x^2+2*x^3)/((1-3*x-x^2+x^3)*(1-x)).at n=10A061703
• Number of matchings in the C_n X P_2 (n-prism) graph.at n=9A102080
• Numbers k such that starting with prime(k) 3, 5, 7, 9, and 11 consecutive primes sum up to prime numbers.at n=17A288142