30173

Appears in sequences

• First numerator and then denominator of the elements to the right of the central elements of the 1/5-Pascal triangle (by row), excluding 1's and 5's.at n=49A046616
• Distinct odd numbers in the numerators of the 1/5-Pascal triangle (by row).at n=31A046624
• Distinct numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/5-Pascal triangle (by row).at n=51A046627
• Distinct odd numbers in writing first numerator and then denominator of each element to the right of the central elements of the 1/5-Pascal triangle (by row).at n=29A046628
• a(n) = either 4a(n-1)+1 or 4a(n-1)+3 depending on corresponding term of A005614, +3 for 0, +1 for 1.at n=7A066744
• a(n) is the unique odd positive solution y of 2^n = 7x^2 + y^2.at n=34A077021