Geodesic
Sequences that satisfy a(n−a(n))=0
Journal of integer sequences, Tome 8 (2005) no. 5.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We explore the properties of some sequences for which a(n−a(n))=0. Under the natural restriction that a(n)n the number of such sequences is a Bell number. Adding other natural restrictions yields sequences counted by the Catalan numbers, the Narayana numbers, the triangle of triangular binomial coefficients, and the Schröder numbers.
Mots-clés : Bell number, Catalan number, schr\ddot oder number, bijection 
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     author = {Kube, Nate and Ruskey, Frank},
     title = {Sequences that satisfy $a(n-a(n))=0$},
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     number = {5},
     year = {2005},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/JIS_2005__8_5_a5/}
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Kube, Nate; Ruskey, Frank. Sequences that satisfy $a(n-a(n))=0$. Journal of integer sequences, Tome 8 (2005) no. 5. https://geodesic-test.mathdoc.fr/item/JIS_2005__8_5_a5/