OFFSET

2,1

COMMENTS

Row n shows the numbers u(m) + u(n), where u = A000201 (lower Wythoff sequence), for m=1..n-1, for n >= 2. (The offset is 2, so that the top row is counted as row 2.)

EXAMPLE

10 = 4 + 6 = u(3) + u(4), so that 10 appears as the final term in row 4. (The offset is 2, so that the top row is counted as row 2.) Rows 2 to 9:

4

5 7

7 9 10

9 11 12 14

10 12 13 15 17

12 14 15 17 19 20

13 15 16 18 20 21 23

15 17 18 20 22 23 25 26

MATHEMATICA

PROG

(PARI) tabl(nn) = {r=(sqrt(5)+1)/2; for (n=2, nn, for (k=1, n-1, print1(floor(n*r) + floor(k*r), ", "); ); print(); ); } \\ Michel Marcus, Jul 30 2015

CROSSREFS

KEYWORD

AUTHOR

Clark Kimberling, Jul 22 2015

STATUS

approved