OFFSET
1,13
COMMENTS
The Heinz number of an integer partition (y_1, ..., y_k) is prime(y_1) * ... * prime(y_k).
LINKS
EXAMPLE
Tetrangle begins (zeroes not shown):
(1): 1
.
(2): 1
(11): -1 1
.
(3): 1
(21): -1 1
(111): 1 -2 1
.
(4): 1
(22): 1 -1
(31): -1 1
(211): 1 -1 -1 1
(1111): -1 1 2 -3 1
.
(5): 1
(41): -1 1
(32): -1 1
(221): 1 -1 1 -1
(311): 1 -1 -1 1
(2111): -1 1 2 -2 -1 1
(11111): 1 -2 -2 3 3 -4 1
For example, row 14 gives: s(32) = h(32) - h(41).
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Gus Wiseman, Nov 22 2018
STATUS
approved