26464

Appears in sequences

• Absolute value of Glaisher's alpha(n).at n=34A002290
• Series for second perpendicular moment of square lattice (eventually changes sign).at n=12A006730
• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 81.at n=35A031579
• Decimal part of cube root of a(n) starts with 8: first term of runs.at n=28A034134
• Number of digits of the 10^n-th tribonacci number (A000073).at n=4A096233
• Expansion of x^2*(2*x^11+2*x^9+2*x^8+x^7+2*x^6+x^5+x^4+x^3-x^2-x-1) / (x^9+x^6+2*x^3-1).at n=38A099206
• Expansion of x^2*(2*x^11+2*x^9+2*x^8+x^7+2*x^6+x^5+x^4+x^3-x^2-x-1) / (x^9+x^6+2*x^3-1).at n=40A099206
• Expansion of x^2*(2*x^11+2*x^9+2*x^8+x^7+2*x^6+x^5+x^4+x^3-x^2-x-1) / (x^9+x^6+2*x^3-1).at n=42A099206
• a(n) = 2*a(n-1) + a(n-2) + a(n-3).at n=12A109545
• Number of labeled prime graphs with respect to the Cartesian multiplication of graphs.at n=5A129581
• A symmetrical sum triangle sequence:a(n)=vector(a(n-1)).Reverse(vector(a(n-1));a(0)=1;a(1)=2;t(n,m)=2+a(n)-a(m)-a(n-m).at n=46A176698
• A symmetrical sum triangle sequence:a(n)=vector(a(n-1)).Reverse(vector(a(n-1));a(0)=1;a(1)=2;t(n,m)=2+a(n)-a(m)-a(n-m).at n=53A176698
• G.f.: Product_{k>0} (1 - x^k)^4 * (1 - (-x)^k)^8.at n=34A225543
• Number of partitions of n such that (greatest part) + (least part) < number of parts.at n=42A237822
• a(n) is the number of integer partitions of n for which the Kimberling index is equal to the index of the seaweed algebra formed by the integer partition paired with its weight.at n=59A318177