A225256 - OEIS

%I #11 Sep 07 2023 07:15:45

%S 3,7,14,23,38,47,68,87,115,147,183,203,245,291,341,395,453,503,568,

%T 619,691,767,827,887,973,1063,1157,1255,1357,1463,1573,1631,1747,1867,

%U 1991,2119,2251,2317,2455,2597,2743,2893,3047,3205,3367,3533,3703,3791,3967

%N Minimum value unattainable as the sum of 2 attained values of a*b with a,b 0..n integers.

%C Related to A225252.

%H R. H. Hardin, <a href="/A225256/b225256.txt">Table of n, a(n) for n = 1..1000</a>

%o (PARI) a(n) = my(v=setbinop((x,y)->x+y, setbinop((x,y)->x*y, [0..n]))); for(k=0, vecmax(v)+1, if (!vecsearch(v, k), return(k))); \\ _Michel Marcus_, Sep 07 2023

%Y Cf. A225252, A225253.

%K nonn

%O 1,1

%A _R. H. Hardin_, May 04 2013