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1,2
H. J. S. Smith, Report on the Theory of Numbers, reprinted in Vol. 1 of his Collected Math. Papers, Chelsea, NY, 1979, see p. 322.
Table of n, a(n) for n=1..88.
G.f.: sum(n>=1, n*x^(n^2)*(1+x^n)/(1-x^n) ). [Joerg Arndt, Jan 30 2011]
Cf. A000203, A079667.
Sequence in context: A140635 A002322 A127835 * A128982 A096216 A121599
Adjacent sequences: A117001 A117002 A117003 * A117005 A117006 A117007
nonn
N. J. A. Sloane, Apr 15 2006
approved