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 A277898 Square array A(r,c), where each row r lists all numbers k for which A277892(k) = r, read by downwards antidiagonals: A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), etc. 7
 3, 4, 5, 6, 9, 7, 8, 12, 25, 11, 10, 14, 33, 49, 13, 18, 15, 35, 58, 93, 17, 22, 16, 44, 65, 119, 169, 19, 24, 20, 45, 77, 121, 185, 287, 23, 30, 21, 51, 91, 124, 209, 289, 361, 29, 32, 26, 55, 95, 143, 214, 299, 437, 529, 31, 40, 27, 57, 106, 161, 221, 323, 473, 589, 802, 37, 42, 28, 60, 111, 177, 247, 327, 493, 611, 841, 934, 41 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 3,1 COMMENTS Permutation of natural numbers larger than 2. LINKS Antti Karttunen, Table of n, a(n) for n = 3..353; the first 26 antidiagonals of array (computed from the b-file provided by Hans Havermann for A277892) FORMULA A(r,1) = A065091(r); for c > 1, A(r,c) = A277893(A(r,c-1)). EXAMPLE The top left corner of the array:    3,    4,    6,    8,   10,   18,   22,   24,   30,   32    5,    9,   12,   14,   15,   16,   20,   21,   26,   27    7,   25,   33,   35,   44,   45,   51,   55,   57,   60   11,   49,   58,   65,   77,   91,   95,  106,  111,  115   13,   93,  119,  121,  124,  143,  161,  177,  187,  203   17,  169,  185,  209,  214,  221,  247,  254,  301,  305   19,  287,  289,  299,  323,  327,  391,  393,  398,  403   23,  361,  437,  473,  493,  551,  565,  629,  633,  685   29,  529,  589,  611,  667,  713,  779,  817,  889,  893   31,  802,  841,  842,  851,  899,  901,  989, 1073, 1081   37,  934,  961, 1121, 1147, 1154, 1189, 1227, 1271, 1293   41, 1333, 1369, 1403, 1437, 1517, 1538, 1591, 1643, 1761   43, 1681, 1739, 1763, 1927, 1943, 2183, 2257, 2263, 2302   47, 1754, 1849, 2021, 2173, 2201, 2279, 2501, 2623, 2747   53, 2209, 2491, 2537, 2594, 2643, 2701, 2773, 2881, 3053 PROG (Scheme) ;; The terms for array proper start with A277898(3): (define (A277898 n) (if (< n 3) n (A277898bi (A002260 (- n 2)) (A004736 (- n 2))))) (define (A277898bi row col) (if (= 1 col) (A000040 (+ 1 row)) (A277893 (A277898bi row (- col 1))))) CROSSREFS Transpose: A277897. Row 1: A277319. Column 1: A065091, column 2: A277900. Cf. A277892 (index of the row where n is located), A277895 (of the column). Cf. A001222, A048675, A277893. Sequence in context: A217347 A249798 A037348 * A212640 A333694 A338321 Adjacent sequences:  A277895 A277896 A277897 * A277899 A277900 A277901 KEYWORD nonn,tabl AUTHOR Antti Karttunen, Nov 08 2016 STATUS approved

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Last modified June 12 08:13 EDT 2021. Contains 344943 sequences. (Running on oeis4.)