OFFSET
0,2
EXAMPLE
Values written as products of primorials:
n a(n)
0 1
1 2
2 2*3#
3 3#*5# (= 180)
4 2*3#*11#
5 8*5#*17#
6 16*3#*7#*29#
7 8*3#*3#*7#*53#
8 32*3#*3#*5#*11#*89#
9 32*3#*3#*7#*17#*157#
10 16*3#*3#*5#*7#*23#*271#
11 16*3#*3#*5#*7#*29#*487#
12 16*3#*3#*5#*7#*13#*31#*857#
CROSSREFS
KEYWORD
nonn
AUTHOR
Pierre CAMI, Jan 27 2008, corrected Feb 26 2008 with the help of Emeric Deutsch
EXTENSIONS
More terms can be obtained by expanding the expressions in the example lines. - N. J. A. Sloane, Feb 26 2008
STATUS
approved