21651

Appears in sequences

• Least term in period of continued fraction for sqrt(n) is 7.at n=29A031431
• Multiplicity of highest weight (or singular) vectors associated with character chi_134 of Monster module.at n=39A034522
• Number of planar partitions of n with exactly 5 rows.at n=16A091359
• Iccanobirt prime indices (7 of 15): Indices of prime numbers in A102117.at n=13A102137
• Numerator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=12.at n=1A145631
• a(n) = 49*n^2 + 2*n.at n=20A157365
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 785", based on the 5-celled von Neumann neighborhood.at n=28A273559
• a(1) = 1; a(n) = Sum_{k=1..n-1, gcd(n,k) = 1} binomial(n,k)*a(k).at n=6A308475
• Main diagonal of A332354.at n=22A332355