6860525

Appears in sequences

• Expansion of (1 +3*x -x^2)/((1-x^2)*(1-2*x-x^2)); a Pellian-related sequence.at n=17A114688
• Values of m such that m^2 + 3 is a triangular number (A000217).at n=9A276598
• Number of noncrossing partitions of an n-set up to rotation with all blocks having a prime number of elements.at n=24A303874