A343954 - OEIS

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A343954

a(n) is the number of triangular faces of Johnson solid J_n.

5

4, 5, 4, 4, 5, 10, 4, 4, 5, 12, 15, 6, 10, 6, 8, 10, 16, 4, 4, 5, 10, 16, 20, 25, 30, 4, 8, 8, 8, 10, 10, 15, 15, 20, 8, 8, 8, 10, 10, 15, 15, 20, 20, 20, 24, 30, 35, 40, 6, 10, 14, 4, 8, 4, 8, 8, 12, 5, 10, 10, 15, 10, 5, 7, 8, 12, 16, 25, 30, 30, 35, 20, 20

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..73.

Wikipedia, List of Johnson solids

FORMULA

a(n) <= A242731(n).

CROSSREFS

Cf. A242731, A343955, A343956, A343957, A343958, A343959.

Sequence in context: A329505 A125583 A196619 * A063694 A242624 A068901

Adjacent sequences: A343951 A343952 A343953 * A343955 A343956 A343957

KEYWORD

nonn,fini

AUTHOR

Felix Fröhlich, May 05 2021

STATUS

approved