1048704

Appears in sequences

• Number of 4 X n 0-1 matrices avoiding simultaneously the right angled numbered polyomino patterns (ranpp) (00;1), (01;0), (10;0) and (01;1).at n=20A100316
• a(n) = n^4 + 4*n.at n=32A180354
• Fixed points of A324556.at n=15A324557