A073472 - OEIS

%I #10 Apr 24 2022 17:19:50

%S 1,2,4,7,11,17,25,36,50,68,92,121,159,205,262,332,417,520,645,793,971,

%T 1180,1430,1722,2065,2467,2934,3478,4109,4835,5676,6638,7747,9013,

%U 10459,12108,13980,16110,18522,21247,24333,27800,31715,36106,41039,46567

%N Trisection of A007294.

%o (Magma) function a007294(n, k) return n gt k*(k+1)/2 select a007294(n-k*(k+1)/2, k) + a007294(n, k+1) else n eq k*(k+1)/2 select 1 else 0; end function; [ a007294(n, 2): n in [2..137 by 3] ]; // _Klaus Brockhaus_, Jan 23 2009

%Y Cf. A007294, A073471, A073470.

%K nonn

%O 0,2

%A _Randall L Rathbun_, Aug 26 2002

%E More terms from _Klaus Brockhaus_, Jan 23 2009