A343956 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A343956

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

5

0, 1, 0, 0, 1, 6, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 6, 0, 0, 1, 6, 0, 0, 0, 0, 2, 2, 7, 7, 12, 0, 0, 0, 2, 2, 7, 7, 12, 12, 0, 0, 2, 7, 12, 0, 0, 0, 2, 2, 0, 0, 0, 0, 11, 10, 10, 9, 2, 3, 3, 0, 0, 0, 1, 2, 2, 3, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,6

LINKS

Table of n, a(n) for n=1..81.

Wikipedia, List of Johnson solids

FORMULA

a(n) < A242731(n).

CROSSREFS

Cf. A242731, A343954, A343955, A343957, A343958, A343959.

Sequence in context: A365989 A365990 A354883 * A324878 A324398 A171916

Adjacent sequences: A343953 A343954 A343955 * A343957 A343958 A343959

KEYWORD

nonn,fini

AUTHOR

Felix Fröhlich, May 05 2021

STATUS

approved