

A134478


Triangle read by rows, T(0,0) = 1; nth row = (n+1) terms of n, n+1, n+2, ...


3



1, 1, 2, 2, 3, 4, 3, 4, 5, 6, 4, 5, 6, 7, 8, 5, 6, 7, 8, 9, 10, 6, 7, 8, 9, 10, 11, 12, 7, 8, 9, 10, 11, 12, 13, 14, 8, 9, 10, 11, 12, 13, 14, 15, 16, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

0,3


COMMENTS



LINKS



EXAMPLE

First few rows of the triangle:
1;
1, 2;
2, 3, 4;
3, 4, 5, 6;
4, 5, 6, 7, 8;
5, 6, 7, 8, 9, 10;
6, 7, 8, 9, 10, 11, 12;
7, 8, 9, 10, 11, 12, 13, 14;
...


MATHEMATICA

Join[{1}, Flatten[Table[Range[n, 2n], {n, 10}]]] (* Harvey P. Dale, Nov 21 2014 *)


PROG

(PARI) concat([1], for(n=1, 10, for(k=0, n, print1(n+k, ", ")))) \\ G. C. Greubel, Sep 24 2017


CROSSREFS



KEYWORD



AUTHOR



STATUS

approved



