149058

Appears in sequences

• a(n) is the number of 2 X 1 domino tilings of the set S in the plane R^2 consisting of the union of the following two rectangles: rectangle1: |x| <= n, |y| <= 1, rectangle2: |x| <= 1, |y| <= n.at n=6A060635
• Averages of twin prime pairs k such that k*2 and k/2 are squares.at n=15A154670
• Expansion of 2*(1 -4*x +14*x^2 +4*x^3 +9*x^4)/(1-x)^5.at n=17A173785
• a(n) = (122n^3 + 140n^2 + 45n + 3n(-1)^n)/8.at n=21A191698
• Numbers that are the sum of three biquadrates (fourth powers) in more than one way.at n=10A193244
• Number of bases to which terms of A141768 are strong pseudoprimes.at n=27A195328
• List of integers m>0 with m-1 and m+1 both prime, and m-2, m, m+2 all practical.at n=24A209236
• Numbers that are the sum of 3 nonzero 4th powers in more than one way.at n=14A309762
• Numbers that are the sum of three fourth powers in exactly two ways.at n=14A344192