24157

Appears in sequences

• Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite CAS = Cesium Aluminosilicate (Araki) Cs4[Al4Si20O48] starting with a T1 atom.at n=13A019088
• Character of extremal vertex operator algebra of rank 29/2.at n=4A028536
• a(n) = binomial(n,4) + binomial(n,2).at n=28A055795
• 45-gonal numbers: n*(43*n-41)/2.at n=33A098924
• Expansion of x*(1-3*x)*(1-x)/(1-7*x+14*x^2-7*x^3).at n=8A122068
• Positive numbers y such that y^2 is of the form x^2+(x+16807)^2 with integer x.at n=8A156713
• Positive numbers y such that y^2 is of the form x^2+(x+833)^2 with integer x.at n=37A156835
• a(n) = (4*n^3 - 9*n^2 + 11*n + 3)/3.at n=27A161707
• Number of partitions of (2, n) into a sum of distinct pairs.at n=37A268345
• First term of n-th difference sequence of (floor(2e*k)), k >= 0.at n=17A325736
• First term of n-th difference sequence of round((k*e)), k >= 0.at n=17A325845
• Numbers for which the harmonic mean of the nontrivial unitary divisors is an integer.at n=11A335269
• a(n) is the number of reduced stable marriage problem instances of order 4 that generate n possible stable matchings.at n=5A351430
• Number of regions formed in a square by straight line segments when connecting the n-1 points between each corner that divide each edge into n equal parts to the n-1 points on each of the two adjacent edges of the square.at n=10A358407
• Array read by ascending antidiagonals: A(n,k) = A376484/(2*n+1).at n=63A376499