19899

Appears in sequences

• T(n, 2*n-4), T given by A027960.at n=24A027966
• Recip transform of 2*(1 + x^2 + x^4 + x^6)-1/(1-x).at n=14A049164
• Binomial transform of Chebyshev coefficients A001794.at n=6A081279
• Square array of binomial transforms of Chebyshev polynomial coefficients.at n=51A081281
• Sum of largest parts (counted with multiplicity) of all partitions of n.at n=25A092321
• Numbers which are the sum of two positive cubes and divisible by 11.at n=26A101852
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 0), (0, 0, 1), (1, -1, -1), (1, 1, 0)}.at n=8A150165
• (1, 4, 7, 10, 13, ...) convolved with (1, 0, 4, 7, 10, 13, ...); given A016777 = (1, 4, 7, 10, 13, ...).at n=24A179905
• Half the number of nX5 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.at n=6A183306
• Half the number of nX7 binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.at n=4A183308
• T(n,k) = Half the number of n X k binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.at n=59A183312
• T(n,k) = Half the number of n X k binary arrays with no element equal to a strict majority of its horizontal and vertical neighbors.at n=61A183312
• a(n) = floor(n^(3/2))*floor(3+n^(3/2))/2.at n=33A185593
• Wiener index of a benzenoid consisting of a spiral chain of n hexagons (s=1; see the Gutman et al. reference).at n=16A193391
• Number of cyclotomic cosets of 11 mod 10^n.at n=49A220021
• Numerators of the fraction (30*n+7) * binomial(2*n,n)^2 * 2F1([1/2 - n/2, -n/2], [1], 64)/(-256)^n, where 2F1 is the hypergeometric function.at n=2A220852
• Smallest multiple of n whose sum of digits is greater than n.at n=26A269332
• Records in A269415.at n=31A278031
• Expansion of Sum_{i = p*q, p prime, q prime} x^i/(1 - x^i) / Product_{j>=1} (1 - x^j).at n=33A281612
• a(n) = Sum_{d|n} d^3*A000593(n/d).at n=25A288419