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Given n+1 boxes labeled 0..n, such that box i weighs i grams and can support a total weight of i grams; a(n) = number of stacks of boxes that can be formed such that no box is squashed.
Table of n, a(n) for n=0..44.
N. J. A. Sloane and J. A. Sellers, On non-squashing partitions, Discrete Math., 294 (2005), 259-274.
See A089054 for g.f.
Cf. A000123, A088567. Equals 2*A089054. Row sums of A089239.
Sequence in context: A104899 A057975 A260881 * A112128 A208933 A227036
Adjacent sequences: A089052 A089053 A089054 * A089056 A089057 A089058
N. J. A. Sloane, Dec 04 2003