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 A131782 (A004736 * A000012) - (A000012 * A004736) - A000012. 1
 1, 5, 1, 11, 5, 1, 19, 11, 5, 1, 29, 19, 11, 5, 1, 41, 29, 19, 11, 5, 1, 55, 41, 29, 19, 11, 5, 1, 71, 55, 41, 29, 19, 11, 5, 1, 89, 71, 55, 41, 19, 19, 11, 5, 1, 109, 89, 71, 55, 41, 29, 19, 11, 5, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A084990 starting (1, 6, 17, 36, 65, 106,...). LINKS FORMULA (A004736 * A000012) - (A000012 * A004736) - A000012; as infinite lower triangular matrices. n-th row = n descending terms of A028387: (1, 5, 11, 19, 29, 41, 55,...). By columns, each column = A028387: (1, 5, 11, 19, 29,...). EXAMPLE First few rows of the triangle are: 1; 5, 1; 11, 5, 1; 19, 11, 5, 1; 29, 19, 11, 5, 1; 41, 29, 19, 11, 5, 1; 55, 41, 29, 19, 11, 5, 1; ... CROSSREFS Cf. A028387, A084990, A004736, A000012. Sequence in context: A189745 A062967 A067292 * A185953 A075677 A051853 Adjacent sequences:  A131779 A131780 A131781 * A131783 A131784 A131785 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Jul 14 2007 STATUS approved

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