Julian Connolly gave a very interesting paper on the role that numbers play in RLSK at the last Nabokov conference in Nice.  Here is a link to Julian's essay, which turns to numerical patterning about halfway through:

 

 

[Jansy wrote: In RLSK there's another birthday small curiosity: Although, in 1935 (the last year of his life), Sebastian Knight was aged 36, he was 37 when he died: "I have managed to reconstruct more or less the last year of Sebastian's life: 1935. He died in the very beginning of 1936, and as I look at this figure I cannot help thinking that there is an occult resemblance between a man and the date of his death. Sebastian Knight d. 1936..."]