OFFSET
1,6
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): 2 3 1
(21): 1 1
(111): 1
.
(4): 6 3 8 6 1
(22): 1 2 1
(31): 2 3 1
(211): 1 1
(1111): 1
.
(5): 24 30 20 15 20 10 1
(41): 6 3 8 6 1
(32): 2 3 2 4 1
(221): 1 2 1
(311): 2 3 1
(2111): 1 1
(11111): 1
For example, row 14 gives: 12h(32) = 2p(32) + 3p(221) + 2p(311) + 4p(2111) + p(11111).
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Gus Wiseman, Nov 23 2018
STATUS
approved