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A024535
[ (4th elementary symmetric function of P(n))/(2nd elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.
0
0, 3, 13, 37, 87, 180, 341, 612, 1019, 1638, 2520, 3696, 5258, 7345, 10085, 13456, 17722, 22936, 29094, 36577, 45419, 55969, 68677, 83398, 100048, 119035, 140228, 164100, 192823, 225035, 261447, 301439, 347315, 397420, 453162, 514981, 582618, 657163
OFFSET
4,2
CROSSREFS
Sequence in context: A098547 A256316 A194486 * A196235 A120479 A146227
KEYWORD
nonn
STATUS
approved