OFFSET
1,1
COMMENTS
Irregular triangle read by rows in which row n lists the next p primes in decreasing order, where p is the n-th prime, with n >= 1.
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
EXAMPLE
Written as an irregular triangle in which row lengths give A000040 the sequence begins:
3, 2;
11, 7, 5;
29, 23, 19, 17, 13;
59, 53, 47, 43, 41, 37, 31;
107, 103, 101, 97, 89, 83, 79, 73, 71, 67, 61;
179, 173, 167, 163, 157, 151, 149, 139, 137, 131, 127, 113, 109;
...
MATHEMATICA
Module[{nn=10, p}, p=Total[Prime[Range[nn]]]; Flatten[Reverse/@TakeList[ Prime[ Range[ p]], Prime[Range[nn]]]]] (* Harvey P. Dale, Sep 14 2022 *)
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Paolo Xausa, Jun 01 2021
STATUS
approved