20519
domain: N
Appears in sequences
- a(n) = |1^3 - 2^3 + 3^3 - 4^3 + ... + (-1)^(n+1)*n^3|.at n=34A011934
- Denominators of continued fraction convergents to sqrt(758).at n=10A042461
- Number of unordered factorizations of n! into two distinct proper factors.at n=18A157672
- Number of zero-sum -n..n arrays of 6 elements with first through third differences also in -n..n.at n=7A202514
- Alternating sum of cubes, i.e., Sum_{k=0..n} k^p*q^k for p=3, q=-1.at n=34A232599
- Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 97", based on the 5-celled von Neumann neighborhood.at n=31A270154
- Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 398", based on the 5-celled von Neumann neighborhood.at n=17A281759
- Number of chiral pairs of multidimensional n-ominoes with cell centers determining n-3 space.at n=5A355054
- Consecutive states of the linear congruential pseudo-random number generator (1021*s + 25673) mod 121500 when started at s=1.at n=26A385341