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 A080328 Smaller of the two Ulam numbers that sum to the n-th Ulam number. 4
 0, 0, 1, 1, 2, 2, 3, 2, 3, 2, 8, 2, 8, 2, 11, 1, 6, 4, 26, 16, 3, 8, 13, 18, 28, 2, 3, 4, 8, 57, 62, 36, 48, 3, 53, 69, 2, 3, 2, 87, 8, 26, 3, 13, 2, 47, 2, 3, 2, 47, 69, 2, 13, 102, 36, 97, 3, 8, 57, 2, 47, 2, 47, 97, 26, 8, 18, 2, 53, 3, 2, 47, 2, 3, 102, 69, 47, 69, 2, 97, 102 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,5 COMMENTS The first two are zero because the Ulam sequence (A002858) is initialized for those terms. The larger term in the sum is in A080329 and the indices are in A080330 and A080331. LINKS T. D. Noe, Table of n, a(n) for n=1..10000 EXAMPLE The 11th Ulam number (26) is the sum of the 6th Ulam number (8) and the 10th Ulam number (18), so a(11)=8. CROSSREFS Cf. A002858, A080329, A080330, A080331. Sequence in context: A080330 A152872 A072832 * A245555 A031266 A238459 Adjacent sequences:  A080325 A080326 A080327 * A080329 A080330 A080331 KEYWORD nonn AUTHOR Jud McCranie, Feb 15 2003 STATUS approved

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Last modified December 8 02:05 EST 2019. Contains 329850 sequences. (Running on oeis4.)