OFFSET
1,4
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..50
Eric Weisstein's World of Mathematics, Minimum Vertex Degree
FORMULA
First differences of A141580. - Andrew Howroyd, Jan 11 2021
CROSSREFS
KEYWORD
nonn
AUTHOR
Andrew Howroyd, Sep 03 2019
STATUS
approved