A343838 Describe all the previous terms (previous terms are concatenated into one large integer; method - digit-indication followed by frequency, initial term is 1).
1, 11, 13, 1431, 143111413111, 14311141311241311341113113, 14311141311241311341113114413113411131122141113112314113311231
Offset: 1
Examples
a(4) is obtained by saying "1 four times, 3 once", which gives 1431.
Links
- Eric Weisstein's World of Mathematics, Look and Say Sequence
Comments