42682

Appears in sequences

• Length of hypotenuse squared in right triangle formed by a palindromic spiral plotted in Cartesian coordinates.at n=23A048871
• a(n) = index of first appearance of n in A096859.at n=17A097007
• (1, 3, 5, 7, 9, ...) convolved with (1, 0, 3, 5, 7, 9, ...).at n=40A179903
• Numbers n such that n^2 + 1 is divisible by a 5th power.at n=27A218564
• Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 5, 6 or 7 king-move adjacent elements, with upper left element zero.at n=8A306169
• Iterates of the Christmas tree pattern map (A367508), where each row is interpreted as a single binary word and converted to decimal.at n=36A368398