89417

Properties

Appears in sequences

• Discriminants of totally real quintic fields.at n=8A023683
• Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.at n=6A207486
• Number of 7Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 1 1 and 1 1 0 vertically.at n=5A207492
• Shifts 9 places left under Euler transform with a(0)=0 and a(n)=1 for n<9.at n=41A218026
• Least prime whose square contributes to A234429.at n=25A247980
• Number of length 1+4 0..n arrays with every five consecutive terms having four times some element equal to the sum of the remaining four.at n=15A249657
• Prime numbersat n=8659