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 A220662 Irregular table: row n (n>=1) consists of A084556(n) copies of A130664(n). 3
 1, 2, 2, 4, 4, 6, 6, 6, 9, 9, 9, 12, 12, 12, 15, 15, 15, 18, 18, 18, 21, 21, 21, 24, 24, 24, 24, 28, 28, 28, 28, 32, 32, 32, 32, 36, 36, 36, 36, 40, 40, 40, 40, 44, 44, 44, 44, 48, 48, 48, 48, 52, 52, 52, 52, 56, 56, 56, 56, 60, 60, 60, 60, 64, 64, 64, 64, 68 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The term a(n) gives the position of the first term in A030298 which belongs to the same permutation as A030298(n) itself. LINKS A. Karttunen, Rows 1..998 of the irregular table, flattened. FORMULA a(n) = A130664(A084557(n)) = A084555(A084557(n)-1)+1. a(A130664(n)) = A130664(n). EXAMPLE Rows of this irregular table begin as: 1; 2, 2; 4, 4; 6, 6, 6; 9, 9, 9; PROG (define (A220662 n) (1+ (A084555 (-1+ (A084557 n))))) CROSSREFS Cf. A220663, A220660, A030298. Sequence in context: A250983 A070320 A124195 * A079584 A179291 A004079 Adjacent sequences: A220659 A220660 A220661 * A220663 A220664 A220665 KEYWORD nonn,tabf AUTHOR Antti Karttunen, Dec 18 2012 STATUS approved

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Last modified August 5 12:17 EDT 2024. Contains 374950 sequences. (Running on oeis4.)