

A304732


Restricted growth sequence transform of A046523(A304531(n)).


5



1, 2, 3, 2, 4, 5, 6, 5, 4, 7, 2, 3, 8, 3, 7, 4, 9, 4, 10, 11, 12, 13, 12, 14, 11, 12, 13, 12, 10, 15, 16, 5, 4, 7, 4, 9, 6, 17, 6, 9, 18, 2, 3, 8, 3, 7, 4, 9, 4, 7, 19, 3, 8, 20, 8, 19, 7, 18, 7, 21, 12, 13, 22, 13, 23, 12, 13, 22, 13, 21, 10, 24, 4, 7, 19, 7, 18, 9, 25, 9, 24, 15, 16, 15, 10, 21, 10, 26, 27, 28, 15, 10, 21, 10, 29, 30, 31, 32, 31
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS



LINKS



PROG

(PARI)
rgs_transform(invec) = { my(om = Map(), outvec = vector(length(invec)), u=1); for(i=1, length(invec), if(mapisdefined(om, invec[i]), my(pp = mapget(om, invec[i])); outvec[i] = outvec[pp] , mapput(om, invec[i], i); outvec[i] = u; u++ )); outvec; };
A046523(n) = { my(f=vecsort(factor(n)[, 2], , 4), p); prod(i=1, #f, (p=nextprime(p+1))^f[i]); }; \\ From A046523


CROSSREFS

Differs from related A304729 for the first time at n=66, where a(66) = 12, while A304729(66) = 15.


KEYWORD

nonn


AUTHOR



STATUS

approved



