194184

Appears in sequences

• Number of conjugacy classes of elements of order n in 2.E_7(C).at n=39A045515
• Triangle, rows = inverse binomial transforms of A117938 columns.at n=40A117937
• Number of 2 X 2 matrices having all terms in {1,...,n} and positive determinant.at n=24A211059
• Numbers n such that n^2+k-1 is the sum of two nonzero squares in exactly k ways for all k = 1, 2, 3.at n=15A273341