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 A227181 Irregular table: integers from n to n^2 followed by integers from (n+1) to (n+1)^2. 4
 0, 1, 2, 3, 4, 3, 4, 5, 6, 7, 8, 9, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Antti Karttunen, Rows 0..31, flattened FORMULA a(n) = A227177(n)+ A227179(n). [As a sequence]. EXAMPLE Row n is A002061(n) terms long, and contains successive integers from n to n*n: 0; 1; 2, 3, 4; 3, 4, 5, 6, 7, 8, 9; 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16; ... MATHEMATICA Flatten[(#+Range[(#1-2) (#1-1)+1]-2&)[Range[7]]] (* Peter J. C. Moses, Jul 11 2013 *) PROG (Scheme): (define (A227181 n) (+ (A227177 n) (A227179 n))) CROSSREFS Right edge: A000290. Central diagonal: A000217. Cf. also A227147. Sequence in context: A322290 A030323 A285872 * A268233 A309241 A065651 Adjacent sequences:  A227178 A227179 A227180 * A227182 A227183 A227184 KEYWORD nonn,tabf AUTHOR Antti Karttunen, Jul 03 2013 STATUS approved

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Last modified December 2 23:36 EST 2020. Contains 338898 sequences. (Running on oeis4.)