31618

Appears in sequences

• Fibonacci sequence beginning 2, 11.at n=18A022115
• Number of ordered triples (w,x,y) with all terms in {1,...,n} and 2w^2>x^2+y^2.at n=40A211810
• Number of (n+2)X(3+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00001011 00010101 or 01010101.at n=9A261375
• Number of integer partitions of n containing all divisors of all parts.at n=47A371178
• a(n) = floor(a(n-1)*3/2) with a(1) = 5.at n=22A381677