34411

Appears in sequences

• a(n) = a(n-1) + a(n-2) + n + 3 with n>1, a(0)=1, a(1)=2.at n=18A210729
• Semiprimes whose binary and ternary representations are prime when read in decimal.at n=39A279052
• The least increasing sequence starting with 1, such that the determinants of the Hankel matrices H1 = [a(0), a(1), ..., a(n); ...; a(n), a(n+1), ..., a(2*n)] and H2 = [a(1), a(2), ..., a(n+1); ...; a(n+1), a(n+2), ..., a(2*n+1)] are > 0.at n=10A376277