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A168085
a(n) = the smallest number whose Welsh name in the traditional Vigesimal System contains n letters of the alphabet.
1
1, 2, 3, 7, 4, 12, 11, 13, 21, 16, 14, 27, 24, 19, 31, 33, 73, 36, 34
OFFSET
2,2
COMMENTS
The table below shows the derivation of the sequence:
..n..Smallest.Number..Welsh.Name
..2.........1.........un
..3.........2.........dau.(m)./.dwy.(f)
..4.........3.........tair.(f)
..5.........7.........saith
..6.........4.........pedwar.(m)./.pedair.(f)
..7........12.........deuddeg
..8........11.........un.ar.ddeg
..9........13.........tri.ar.ddeg
.10........21.........un.ar.hugain
.11........16.........un.ar.bymtheg
.12........14.........pedwar.ar.ddeg
.13........27.........saith.ar.hugain
.14........24.........pedwar.ar.hugain
.15........19.........pedwar.ar.bymtheg
.16........31.........un.ar.ddeg.ar.hugain
.17........33.........tri.ar.ddeg.ar.hugain
.18........73.........tri.ar.ddeg.a.thrigain
.19........36.........un.ar.bymtheg.ar.hugain
.20........34.........pedwar.ar.ddeg.ar.hugain
CROSSREFS
Sequence in context: A357482 A026259 A168087 * A287950 A287628 A319863
KEYWORD
nonn,word
AUTHOR
STATUS
approved