68080

Appears in sequences

• Denominators of continued fraction convergents to sqrt(424).at n=13A041807
• Numbers k such that k and k^2 use only the digits 0, 3, 4, 6 and 8.at n=17A136931
• a(n) = n*(n+1)*(n+2)*(n^2+2*n+17)/120.at n=22A257199
• Number of n X n 0..2 arrays with no element equal to any value at offset (-2,-1), (-2,0) or (-1,-1) and new values introduced in order 0..2.at n=5A275497
• Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.at n=5A275502
• Number of 6 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,-1) and new values introduced in order 0..2.at n=5A275506
• Number of nX6 0..1 arrays with every element equal to 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=7A300433