OFFSET
1,4
COMMENTS
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..10000
EXAMPLE
Writing pairs vertically, the initial segments are
1..1..3..4 1..6 2 1..8 3 2 1 1..11 5 3 2 3 1
...1..1..1 3..1 3 4..1 3 4 6 2...1 3 4 6 2 8.
The 5th segment is read "6 1's and 2 3's and 1 4," this being a count of all the previously written numbers. The numbers 6,2,1 are used as adjectives, whereas 1,3,4 are used as nouns. Here, the nouns are kept in order of first appearance; in A055187, they are in increasing order. - Clark Kimberling, Mar 25 2013
MATHEMATICA
s = {1}; Do[s = Flatten[{s, {Count[s, #], #} & /@ DeleteDuplicates[s]}], {14}]; s (* Peter J. C. Moses, Mar 21 2013 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Mar 25 2013
EXTENSIONS
More terms from Seiichi Manyama, Nov 10 2022
STATUS
approved