1088429domain: NAppears in sequencesSquare loops: the number of circular permutations (reversals not counted as different) of the numbers 0 to n such that the sum of any two consecutive numbers is a square.at n=17A108661Numerators of coefficients in 1/(log(1+x)*log(1-x)) - 5/12 + 1/x^2 power series.at n=3A178172