24982

Appears in sequences

• Expansion of 1/(1-x^2-x^3-x^4-x^5-x^6).at n=25A013983
• a(n) = A027052(n, 2n-7).at n=9A027063
• In ternary expansion of n, reading from right to left, digits occur in order ...,0,1,2,0,1,2,...at n=19A037078
• Base-3 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,2.at n=9A037496
• Numbers n such that n^2 can be split into two nonzero squares (perhaps with leading zeros) in exactly two different ways.at n=9A054737
• Composite numbers, not ending with 0, sharing a 3-digit sequence with some of its prime factors.at n=29A131523
• Number of distinct Markov type classes of order 5 possible in binary strings of length n.at n=10A132300
• Number of n X 2 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,1,1 for x=0,1,2,3,4.at n=9A197607
• a(n) = [x^n] Product_{k>=1} ((1 - x^k)/(1 + x^k))^sigma_n(k).at n=5A321068
• Numbers in whose base 3-representation every two consecutive digits and every three consecutive digits are distinct.at n=35A369635