19206

Appears in sequences

• Denominators of continued fraction convergents to sqrt(600).at n=5A042151
• Sum of smallest parts (counted with multiplicity) of all partitions of n.at n=27A092309
• McKay-Thompson series of class 32a for the Monster group.at n=39A107635
• Number of palindromes (in base 7) below 7^n.at n=8A117866
• 6 times octagonal numbers: a(n) = 6*n*(3*n-2).at n=33A153796
• The numbers n in s=n^2 + (n+1)^2 that satisfy the requirement for two consecutive squares c,d with c<d with d-c being the sum of two consecutive squares that c<s<d will give s-c and d-s both being squares.at n=21A192743
• a(n) = 9*n^3/2 - 21*n^2/2 + 8*n - 4.at n=15A232495
• Number of compositions of n with exactly 9 transitions between different parts.at n=5A244721
• Number of triangles larger than size=1 in a matchstick-made hexagon with side length n.at n=18A307253
• Least common multiple of prime(n+1)+1 and prime(n)+1.at n=43A309772
• Expansion of e.g.f. -LambertW(-x) * Product_{k>=1} (1+x^k).at n=6A317104
• Two-column table read by rows: Primitive distinct pairs that have the same value of phi, sigma, and tau.at n=27A322688
• Number of compositions of 2*n with n maximal runs.at n=10A336108
• Number of edges in a hexagon when n internal hexagons are drawn between the 6n points that divide each side into n+1 equal parts.at n=40A357198