235509

Appears in sequences

• Smallest k such that the simple continued fraction for Sum(d|k, 1/d) contains exactly n elements.at n=20A071865
• Polar structured meta-anti-diamond numbers, the n-th number from a polar structured n-gonal anti-diamond number sequence.at n=28A100188
• Number of tilings of a 2 X n rectangle using 2 X 2 and 1 X 1 tiles and right trominoes.at n=12A353964