1,1

T(n,k) = p(k)+p(2n+1-k) for k=1,2,...,n, where p(1)=3, p(2)=5, ... are the odd primes.

First six rows:

8

14 12

20 18 18

26 24 24 24

34 34 30 30 30

44 42 38 40 36 36

Row 3 is formed from the first 6 odd primes:

3 5 7 11 13 17 --> 3+17 5+13 7+11

Sequence in context: A166670 A107764 A109847 this_sequence A092537 A082772 A103338

Adjacent sequences: A122456 A122457 A122458 this_sequence A122460 A122461 A122462

nonn,tabl

Clark Kimberling (ck6(AT)evansville.edu), Sep 08 2006