20562

Appears in sequences

• a(n) = floor(binomial(n,4)/4).at n=39A011850
• [ (4th elementary symmetric function of S(n))/(2nd elementary symmetric function of S(n)) ], where S(n) = {first n+3 odd positive integers}.at n=20A024205
• a(n) = prime(n)*prime(n+1) - prime(n+1).at n=33A037167
• Integers n > 10563 such that the 'Reverse and Add!' trajectory of n joins the trajectory of 10563.at n=14A063064
• If p(k) is the k-th prime, then the n-th set of 3 consecutive cousin prime pairs starts at p(a(n)).at n=31A095970
• Number of base 12 n-digit numbers with adjacent digits differing by one or less.at n=8A126366
• Row sums of triangle A178568.at n=23A169826
• Number of n X 8 binary arrays without the pattern 0 1 diagonally, vertically or antidiagonally.at n=10A188865
• Integer lengths of the Mills primes A051254.at n=10A224845
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 318", based on the 5-celled von Neumann neighborhood.at n=36A271252
• G.f. A(x) satisfies: A(x) = x * exp(Sum_{k>=1} (A(x^k) + sigma(k)*x^k)/k).at n=10A307975
• First position of n in A354578, where A354578(k) is the number of integer compositions whose run-sums constitute the k-th composition in standard order (graded reverse-lexicographic, A066099).at n=25A354905