1509949440

Appears in sequences

• 1/2 times the number of n X n 0..3 matrices M with MM' mod 4 = I, where M' is the transpose of M and I is the n X n identity matrix.at n=5A071303
• Row sums of triangle A094280.at n=28A094283
• 30*a(n) + 1 is the least prime of the form 2^r*3^s*5^t + 1, r > 0, s > 0, t > 0, r + s + t = n.at n=28A337882
• Triangle read by rows: T(n,k) are the unique integer coefficients such that Sum_{k=0..n} T(n,k)*A125790(k,m)/2^(n*k) = (m+2)^n for all n >= 0, m >= 0.at n=27A391910