OFFSET
1,2
COMMENTS
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..1275 (first 50 rows)
FORMULA
EXAMPLE
First few rows of the triangle are:
1;
2, 3;
4, 5, 7;
6, 7, 9, 11;
10, 11, 13, 15, 19;
12, 13, 15, 17, 21, 23;
16, 17, 19, 21, 25, 27, 31;
18, 19, 21, 23, 27, 29, 33, 35;
22, 23, 25, 27, 31, 33, 37, 39, 43;
...
PROG
(PARI) T(n, k) = if(k<=n, prime(n) + prime(k) - 3, 0) \\ Andrew Howroyd, Sep 01 2018
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jul 10 2007
EXTENSIONS
Name clarified and terms a(56) and beyond from Andrew Howroyd, Sep 01 2018
STATUS
approved