OFFSET
1,3
COMMENTS
Conjecture: 23 is the only number not in this sequence.
Not the same as A004830: 239 is a term of this sequence but not of A004830. - R. J. Mathar and Joerg Arndt, Jul 28 2012
There are no other missing numbers from 24 to 10^8. - Giovanni Resta, Oct 12 2019
EXAMPLE
22 = 2^2 + 4^2 + 1^3 + 1^3, 22 is in this sequence.
CROSSREFS
KEYWORD
nonn
AUTHOR
Philippe Deléham, Jul 20 2012
STATUS
approved