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 A199479 Triangle T(n,k), read by rows, given by (1,0,0,0,0,0,0,0,0,0,...) DELTA (1,1,1,0,0,0,0,0,0,0,...) where DELTA is the operator defined in A084938. 0
 1, 1, 1, 1, 3, 2, 1, 5, 9, 5, 1, 7, 20, 27, 13, 1, 9, 35, 73, 80, 34, 1, 11, 54, 151, 252, 234, 89, 1, 13, 77, 269, 597, 837, 677, 233, 1, 15, 104, 435, 1199, 2225, 2702, 1941, 610, 1, 17, 135, 657, 2158, 4956, 7943, 8533, 5523, 1597 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS Mirror image of triangle in A147703. LINKS FORMULA Sum_{k=0..n} T(n,k)*x^k = A152620(n), A152594(n), A000007(n), A000012(n), A006012(n), A152596(n), A152599(n) for x=-3,-2,-1,0,1,2,3 respectively. T(n,n) = A001519(n). G.f.: (1-2y*x)/(1-(1+3y)*x+y*(1+y)*x^2). EXAMPLE Triangle begins: 1; 1, 1; 1, 3, 2; 1, 5, 9, 5; 1, 7, 20, 27, 13; 1, 9, 35, 73, 80, 34; CROSSREFS Cf. A001519, A059502, A000012, A005408, A014107. Sequence in context: A077976 A021912 A114597 * A050165 A330784 A198876 Adjacent sequences: A199476 A199477 A199478 * A199480 A199481 A199482 KEYWORD easy,nonn,tabl AUTHOR Philippe Deléham, Nov 06 2011 STATUS approved

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Last modified February 4 07:13 EST 2023. Contains 360046 sequences. (Running on oeis4.)