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A296305
Triangular array T(n, k) read by rows, n > 0, 0 < k <= n: T(n, k) = A297673(n, k) + A297673(n+1, k) + A297673(n+1, k+1).
2
7, 11, 17, 17, 23, 29, 31, 37, 31, 43, 43, 53, 53, 61, 59, 53, 71, 79, 79, 71, 71, 71, 79, 89, 89, 89, 97, 107, 97, 107, 127, 127, 109, 113, 127, 127, 127, 137, 137, 163, 149, 131, 139, 157, 163, 149, 167, 163, 173, 173, 157, 163, 179, 193, 197, 173, 211, 211
OFFSET
1,1
COMMENTS
All terms are odd prime numbers.
LINKS
EXAMPLE
Triangle begins:
1: 7
2: 11, 17
3: 17, 23, 29
4: 31, 37, 31, 43
5: 43, 53, 53, 61, 59
6: 53, 71, 79, 79, 71, 71
7: 71, 79, 89, 89, 89, 97, 107
8: 97, 107, 127, 127, 109, 113, 127, 127
9: 127, 137, 137, 163, 149, 131, 139, 157, 163
10: 149, 167, 163, 173, 173, 157, 163, 179, 193, 197
PROG
(PARI) See Links section.
CROSSREFS
Cf. A297673.
Sequence in context: A293343 A131626 A086762 * A349997 A076045 A101618
KEYWORD
nonn,tabl,easy
AUTHOR
Rémy Sigrist, Jan 03 2018
STATUS
approved