24516

Appears in sequences

• Theta series of A*_17 lattice.at n=68A023929
• [ (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=21A024205
• Numbers k such that the product of the digits of k is equal to the sum of the prime factors of k, counted with multiplicity.at n=37A065774
• Sum of terms of n-th group in A075383.at n=26A075386
• Number of configurations of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square at one of the 4 central squares.at n=13A090164
• Number of meaningful differential operations of the n-th order on the space R^7.at n=13A090992
• Floor-Sqrt transform of central binomial coefficients (A000984).at n=16A192655
• Number n such that a2 - n^3 is a triangular number (A000217), where a2 is the least square above n^3.at n=38A233400
• Number of partitions of n such that the multiplicity of the least part is a part.at n=42A240493
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 429", based on the 5-celled von Neumann neighborhood.at n=31A272113
• Number of decagons that can be formed with perimeter n.at n=43A288256
• Number of Motzkin meanders of length n with an odd number of peaks.at n=11A307577
• Triangle read by rows: T(n,k) is the number of chains of length k in the poset of all arithmetic progressions contained in {1,...,n} of length in the range [1..n-1], ordered by inclusion.at n=51A347580