cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A104458 Define the first two terms to be 2 and 3. All the other terms are obtained by concatenating the two previous terms.

Original entry on oeis.org

2, 3, 23, 323, 23323, 32323323, 2332332323323, 323233232332332323323, 2332332323323323233232332332323323, 3232332323323323233232332332323323323233232332332323323, 23323323233233232332323323323233233232332323323323233232332332323323323233232332332323323
Offset: 1

Views

Author

Parthasarathy Nambi, Apr 21 2005

Keywords

Examples

			The third term is obtained by concatenating the previous two terms 2 and 3 to get 23.
		

Programs

  • Mathematica
    nxt[{a_,b_}]:={b,FromDigits[Join[IntegerDigits[a],IntegerDigits[b]]]}; NestList[nxt,{2,3},10][[All,1]] (* Harvey P. Dale, Jul 23 2018 *)

Extensions

More terms from Harvey P. Dale, Jul 23 2018