OFFSET
1,5
LINKS
T. D. Noe, Table of n, a(n) for n=1..10000
FORMULA
a(n) = A038548(n-1), 2<=n<=25. - Omar E. Pol, Feb 05 2014
MATHEMATICA
a[1]=1; a[n_] := a[n] = Module[{d=Divisors[n-1], s=0, i=1}, While[i<=Length[d] && d[[i]]<=Sqrt[n-1], s=s+a[d[[i]]]; i++ ]; s]; Table[a[n], {n, 150}] (T. D. Noe)
CROSSREFS
KEYWORD
nonn
AUTHOR
Leroy Quet, Mar 22 2002
EXTENSIONS
More terms from T. D. Noe, Nov 03 2004
STATUS
approved