22440

Appears in sequences

• Expansion of a cusp form of weight 8 for Gamma_1(6).at n=19A006354
• Expansion of Product_{k>=1} (1 - x^k)^20.at n=7A010826
• a(n) = (n-3)*A006918(n-2)/2 for n >= 2, with a(0) = a(1) = 0.at n=33A038376
• Number of nonempty subsets of {1,2,...,n} in which exactly 5/6 of the elements are <= (n-4)/2.at n=28A048070
• Smallest positive number of "triangular" shuffles of n(n+1)/2 cards needed to restore them to their original order.at n=19A048782
• Least k such that the least factor of k^Phi(k) -1 is the n-th prime.at n=7A066732
• a(n) = n * (2^n - 8).at n=11A083727
• Smallest number having n abundant divisors.at n=35A091193
• Numbers that can be expressed as the difference of the squares of primes in exactly nine distinct ways.at n=2A092005
• Row 7 of array in A288580.at n=17A092972
• n-th partial product of A093839.at n=5A093842
• n-th partial product of A093839 divided by n.at n=6A093843
• When the n-th term of this sequence is added to or subtracted from the square of the n-th prime of the form 4k + 1 (i.e., A002144(n)), the result in both cases is a square.at n=16A114200
• Numbers k such that 2*k-1, 4*k-1, 6*k-1 and 8*k-1 are primes.at n=17A124487
• Number of LL's in all skew Dyck paths of semilength n.at n=9A128726
• Smallest short legs 'A' of exactly n primitive Pythagorean triangles.at n=14A132404
• a(n) = 25*n^2 - 2*n.at n=29A154376
• a(n) = 1728*n - 24.at n=12A157287
• Numbers with exactly 64 divisors.at n=18A172443
• Integers n for which quintic x^5-x+/-n is the product of an irreducible quadratic and an irreducible cubic polynomials.at n=1A179106