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A056636 Conjecturally largest even integer which is the sum of two primes in at most n ways. 1
2, 12, 68, 128, 152, 188, 332, 398, 398, 488, 632, 692, 692, 992, 992, 992, 1112, 1112, 1412, 1412, 1448, 1718, 1718, 1718, 1718, 2048, 2252, 2252, 2672, 2672, 2672, 2936, 2936, 2936, 2978, 3092, 3092, 3218, 3272, 3296, 3632, 3632, 3754, 4022, 4058, 4412 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

The Goldbach conjecture is that every even number is the sum of two primes.

LINKS

Index entries for sequences related to Goldbach conjecture

EXAMPLE

a(1) is 12 because it it the largest integer having only 1 distinct way to express it as the sum of two primes (7+5).

CROSSREFS

Cf. A045917, A023036, A000954.

Sequence in context: A020062 A185235 A000954 * A174327 A128103 A078839

Adjacent sequences:  A056633 A056634 A056635 * A056637 A056638 A056639

KEYWORD

nonn

AUTHOR

Brian L. Galebach (sequence(AT)ProbabilitySports.com) Aug 17 2000

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.