61097

Appears in sequences

• Numbers that are the sum of 7 positive 9th powers.at n=25A003396
• Numbers that are the sum of 3 nonzero 10th powers.at n=6A004803
• Numbers that are the sum of at most 3 nonzero 10th powers.at n=15A004898
• Numbers that are the sum of at most 4 nonzero 10th powers.at n=22A004899
• Numbers that are the sum of at most 5 nonzero 10th powers.at n=30A004900
• Numbers that are the sum of at most 6 nonzero 10th powers.at n=39A004901
• Numbers k such that 6*10^k + R_k is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=21A056717
• Expansion of (1 - 2*x - 2*x^2)/((1 - 2*x)*(1 - 3*x)).at n=11A085279
• Number of ways to place zero or more nonadjacent 0,0 1,0 2,0 3,0 4,1 5,1 polyhexes in any orientation on a planar nXnXn triangular grid.at n=6A155282
• Row lengths in A261644.at n=19A261646
• a(n) = 3^(n+1) + 2*(-2)^(n+1).at n=9A369490