206116

Appears in sequences

• Squares that are the sum of two consecutive primes.at n=28A062703
• Squares containing 2k digits in which the sum of the first k digits = that of the rest.at n=9A068897
• Corresponds to m = 9 in a family of 4th-order linear recurrence sequences given by a(m,n) = m^4*a(n-4) + (2*m)^2*a(n-3) - 4*a(m-1), a(m,0) = -1, a(m,1) = 4, a(m,2) = -13 + 6*(m-1) + 3*(m-1)^2, a(m,3) = (-8+m^2)^2.at n=5A113255
• Perfect powers which are the sum of two consecutive primes.at n=34A245360
• G.f.: 1 / AGM(1-12*x, sqrt((1-4*x)*(1-36*x))).at n=4A246876
• Numbers whose cube is of the form a^5 + b^5 - c^5 with a >= b > 0 and c not in {a,b}.at n=15A257298
• Squares that become prime when their rightmost digit is removed.at n=34A265211
• Matula-Goebel numbers of series-reduced powerful uniform rooted trees.at n=40A318692