Floor and roof function analogs of the Bell numbers. Gould, H.W., Quaintance, Jocelyn (2007) Integers
Formule exprimant les nombres de Cotes à l'aide des nombres de Stirling D. S. Mitrinović (1963) Matematički Vesnik
Frequencies of factors in Arnoux-Rauzy sequences Nathan Wozny, Luca Q. Zamboni (2001) Acta Arithmetica
Functions of slow increase and integer sequences. Jakimczuk, Rafael (2010) Journal of Integer Sequences [electronic only]
Further results on derived sequences. Hare, Kevin G., Yazdani, Soroosh (2003) Journal of Integer Sequences [electronic only]