OFFSET
1,1
COMMENTS
LINKS
M. F. Hasler, Table of n, a(n) for n = 1..2601 (complete sequence).
MATHEMATICA
With[{s = Prime@ Range@ PrimePi@ 60}, NumberCompose[{#1, #2, #3}, {3600, 60, 1}] & @@ # & /@ Tuples@ {TakeWhile[s, # < 24 &], s, s}] (* Michael De Vlieger, Jan 21 2018 *)
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
M. F. Hasler, Jan 15 2018
STATUS
approved