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 A167852 Triangle read by rows in which each row contains a finite triangle as shown below. 2
 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 2, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 2, 1, 1, 2, 3, 3, 2, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,15 COMMENTS See also A159800, A164002, A167850 and A167851. LINKS EXAMPLE The main triangle begins: 1, 1,1,1, 1,1,1,1,1,1, 1,1,1,1,2,1,1,1,1,1, 1,1,1,1,2,1,1,2,2,1,1,1,1,1,1, 1,1,1,1,2,1,1,2,2,1,1,2,2,2,1,1,1,1,1,1,1, 1,1,1,1,2,1,1,2,2,1,1,2,3,2,1,1,2,2,2,2,1,1,1,1,1,1,1,1, 1,1,1,1,2,1,1,2,2,1,1,2,3,2,1,1,2,3,3,2,1,1,2,2,2,2,2,1,1,1,1,1,1,1,1,1, In which row 1 contains a vertex, only: 1, Row 2 contains the triangle: 1, 1,1, Row 3 contains the triangle: 1, 1,1, 1,1,1, Row 4 contains the triangle: 1, 1,1, 1,2,1, 1,1,1,1, Row 5 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,1,1,1,1, Row 6 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,2,2,2,1, 1,1,1,1,1,1, Row 7 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,2,3,2,1, 1,2,2,2,2,1, 1,1,1,1,1,1,1, Row 8 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,2,3,2,1, 1,2,3,3,2,1, 1,2,2,2,2,2,1, 1,1,1,1,1,1,1,1, Row 9 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,2,3,2,1, 1,2,3,3,2,1, 1,2,3,3,3,2,1, 1,2,2,2,2,2,2,1, 1,1,1,1,1,1,1,1,1, Row 10 contains the triangle: 1, 1,1, 1,2,1, 1,2,2,1, 1,2,3,2,1, 1,2,3,3,2,1, 1,2,3,4,3,2,1, 1,2,3,3,3,3,2,1, 1,2,2,2,2,2,2,2,1, 1,1,1,1,1,1,1,1,1,1, And so on... CROSSREFS Cf. A159800, A164002, A167850, A167851. Sequence in context: A127937 A250209 A280010 * A184340 A083911 A095827 Adjacent sequences:  A167849 A167850 A167851 * A167853 A167854 A167855 KEYWORD easy,nonn,tabf AUTHOR Omar E. Pol, Nov 13 2009 STATUS approved

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Last modified November 15 11:35 EST 2018. Contains 317238 sequences. (Running on oeis4.)