A136248 - OEIS

A136248

Triangle H4 read by rows: see link for definition.

1, 1, 1, 1, 1, 1, 3, 4, 6, 4, 3, 1, 1, 7, 13, 26, 31, 31, 25, 13, 6, 1, 1, 15, 40, 100, 171, 220, 255, 215, 156, 85, 35, 10, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,7

COMMENTS

Row n has 3n+1 terms.

LINKS

EXAMPLE

Triangle begins:

1 1 1 1

1 3 4 6 4 3 1

1 7 13 26 31 31 25 13 6 1

1 15 40 100 171 220 255 215 156 85 35 10 1

CROSSREFS

KEYWORD

nonn,tabf

AUTHOR

STATUS

approved