OFFSET
2,1
COMMENTS
EXAMPLE
a(4)=10 because T(A138796(4))=10.
MATHEMATICA
T=#(#+1)/2&; T[Min[k/.{ToRules[Reduce[{T[k]-T[j]\[Equal]#, 0<j<k}, {j, k}, Integers]]}]]&/@Range[2, 100]
CROSSREFS
KEYWORD
nonn
AUTHOR
Peter Pein (petsie(AT)dordos.net), Mar 30, 2008
STATUS
approved