19536

Appears in sequences

• Number of alternating prime knots with n crossings.at n=13A002864
• Number of terms in 7th derivative of a function composed with itself n times.at n=10A022817
• Starting from generation 7 add previous and next term yielding generation 8.at n=35A048454
• Triangle T(n,k), n >= 1, giving number of prime unoriented alternating links with n crossings and k components.at n=44A059739
• a(n) = n*(1+n^2)*((2+n^2)^2-n^2)/16.at n=5A094311
• Structured truncated dodecahedral numbers.at n=10A100153
• Numbers which can be expressed as the product of numbers made of only fours.at n=20A161142
• a(n) = 2*n*(9*n-1).at n=32A178574
• Number of acute triangles on an n X n grid (or geoboard).at n=8A190019
• a(n) = 2*n*(7*n + 5).at n=37A195027
• Sum of smallest parts of all partitions of n into an even number of parts.at n=39A222045
• Number of n X 3 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than or equal to itself.at n=10A266050
• Partial sums of A140091.at n=32A267370
• Number of domino tilings of Ferrers-Young diagrams of partitions of 2n using exactly floor(n/2) horizontally oriented dominoes.at n=13A304719
• G.f.: Sum_{k>=1} x^k/(1-x^k) * Product_{k>=1} (1+x^k)/(1-x^k).at n=18A305102
• Sum of the third largest parts of the partitions of n into 10 squarefree parts.at n=52A326635
• Number of ways to write n as an ordered sum of 6 primes (counting 1 as a prime).at n=41A341985
• Numbers k such that the k-th composition in standard order is an alternating permutation of {1..k} for some k.at n=37A349051
• Numbers such that the two numbers before and the two numbers after are squarefree semiprimes.at n=35A358666
• Least number k such that there are exactly n ways to choose a multiset consisting of a binary index of each binary index of k.at n=40A367913