47447

Appears in sequences

• 4-step Fibonacci sequence starting with 1, 1, 0, 1.at n=19A251704
• Composites whose prime factorization in base 8 is an anagram of the number in base 8.at n=21A260052
• G.f. A(x) satisfies: A(x*A(-x)) = x^3 - x^2.at n=19A273034
• Numbers with digits 4 and 7 only.at n=39A284971
• Lexicographically first sequence of distinct terms such that the sum of any two terms is not a term of the sequence, and the sum of any two digits is not a digit of the sequence.at n=41A302938
• Number of nX2 0..1 arrays with every element unequal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=8A318062
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.at n=46A318068
• Least index a(n) such that the sequences b(n,m) from A334539 are purely periodic after a(n).at n=38A335296