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Number of connected strong irreducible digital images of n points up to strong homotopy equivalence.
0

%I #11 Apr 10 2019 06:13:38

%S 1,0,0,1,2,9,46,507,11800

%N Number of connected strong irreducible digital images of n points up to strong homotopy equivalence.

%C "Strong irreducible" means not strong homotopy equivalent to an image of fewer points. Each term is greater than or equal to the corresponding term of A248571.

%H P. C. Staecker, <a href="https://arxiv.org/abs/1903.00706">Strong homotopy of digitally continuous functions</a>, arxiv:1903.00706 [math.GN], 2019. See table p. 16.

%Y Cf. A248571.

%K nonn,more

%O 1,5

%A _P. Christopher Staecker_, Mar 06 2019