-814

Appears in sequences

• Expansion of square of continued fraction 1/ ( 1+q/ ( 1+q^2/ ( 1+q^3/ ( 1+q^4/... )))).at n=41A055101
• a(n) = A138906(n) - A138905(n).at n=16A138907
• [x^(n+1)]Reversion[x*(1-x)/(1-3*x)].at n=10A152681
• Inverse binomial transform of A135318.at n=12A373392