OFFSET
1,1
EXAMPLE
a(5) = 61 is the smallest initial prime of a subset of 6 consecutive primes {61, 67, 71, 73, 79, 83} such that 83 + 61 = 144 = 12^2.
MAPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Lagneau, Oct 07 2011
STATUS
approved