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A073471
Trisection of A007294.
2
1, 2, 4, 7, 11, 17, 24, 35, 48, 66, 89, 117, 153, 197, 252, 320, 401, 501, 619, 763, 933, 1134, 1374, 1654, 1985, 2372, 2821, 3345, 3949, 4652, 5460, 6390, 7457, 8676, 10071, 11662, 13468, 15526, 17850, 20487, 23463, 26818, 30598, 34842, 39614, 44962
OFFSET
0,2
PROG
(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, 1): n in [1..136 by 3] ]; // Klaus Brockhaus, Jan 23 2009
CROSSREFS
KEYWORD
nonn
AUTHOR
Randall L Rathbun, Aug 26 2002
EXTENSIONS
More terms from Klaus Brockhaus, Jan 23 2009
STATUS
approved