

A179204


a(1)=11. For n>1, a(n) is LCM of a(n1) and largest integer <= sqrt(a(n1)).


4



11, 33, 165, 660, 3300, 62700, 313500, 175246500, 1159956583500, 104107263325708500, 33590892600867160755553500, 16223743465315689722383864179533682000, 816839289277964676046109573379123296940139985976528000
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

All similar sequences starting with numbers less than 11 become constant after a few terms.
Next initial values for the sequence to behave like this one: 13, 17, 19, 23, 26, 27, 28, 29, ...  Michel Marcus, Jun 14 2013


LINKS

Jon E. Schoenfield, Table of n, a(n) for n = 1..20


PROG

(PARI) lista(nn) = {ia = 11; print1(ia, ", "); for (i=1, nn, ib = lcm(ia, sqrtint(ia)); print1(ib, ", "); ia = ib; ); } \\ Michel Marcus, Jun 14 2013


CROSSREFS

Cf. A241097.
Sequence in context: A297478 A213973 A262913 * A328606 A240414 A262328
Adjacent sequences: A179201 A179202 A179203 * A179205 A179206 A179207


KEYWORD

nonn


AUTHOR

J. Lowell, Jul 02 2010


EXTENSIONS

Extended by Ray Chandler, Jul 07 2010
More terms from Jon E. Schoenfield, Jul 05 2010
bfile corrected by Jon E. Schoenfield, Apr 26 2014 after Alois P. Heinz found that the terms from a(15) onward were incorrect


STATUS

approved



