32985

Appears in sequences

• sec(arcsin(arcsin(x)))=1+1/2!*x^2+13/4!*x^4+469/6!*x^6+32985/8!*x^8...at n=4A012073
• Expansion of e.g.f.: exp(arctanh(arcsin(x)))=1+x+1/2!*x^2+4/3!*x^3+13/4!*x^4+84/5!*x^5...at n=8A012258
• Expansion of 1/(2*sqrt(1-4*x^2)-x-1).at n=11A116390
• Numbers k such that if you subtract k from its reversal you get a positive number with the same digits as k.at n=12A121970
• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1110-1111 pattern in any orientation.at n=9A146744
• Riordan matrix (1/((1-x)*sqrt(1-4*x)),x/(1-x)).at n=57A187887
• Number of compositions of n with strictly increasing run-lengths.at n=49A333192