Now is the time of year when we ask all users of the OEIS for their annual support.
Click here to donate
to the OEIS Foundation using PayPal or in other ways.
Which integers occur in the sequence? The first 4 unknown values are 4, 10, 16 and 24, which do not occur for n up to 20000.
Table of n, a(n) for n=1..72.
Cf. A073872, A073873.
Sequence in context: A169659 A091724 A016576 * A065287 A065263 A057114
Adjacent sequences: A073871 A073872 A073873 * A073875 A073876 A073877
Amarnath Murthy, Aug 16 2002
Edited by Dean Hickerson (dean.hickerson(AT)yahoo.com), Oct 15 2002