OFFSET
1,9
COMMENTS
The Heinz number of an integer partition (y_1, ..., y_k) is prime(y_1) * ... * prime(y_k).
LINKS
EXAMPLE
Tetrangle begins (zeros not shown):
(1): 1
.
(2): -1 1
(11): 1
.
(3): 1 -1 1
(21): -2 1
(111): 1
.
(4): -1 1 -1 1
(22): 1 1 -1
(31): 2 -1 -1 1
(211): -3 1
(1111): 1
.
(5): 1 -1 1 -1 1
(41): -2 1 1 -1 -1 1
(32): -2 2 -1 1 -1
(221): 3 -2 1
(311): 3 -1 -1 1
(2111): -4 1
(11111): 1
For example, row 14 gives: f(32) = -2s(5) - s(32) + 2s(41) + s(221) - s(311).
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Gus Wiseman, Nov 23 2018
STATUS
approved