A231408 Positive integers that are not the sum of distinct odd primes.

1, 2, 4, 6, 9

Offset

1,2

Comments

Using elementary methods, Dressler proved that 9 is the largest integer which is not the sum of distinct odd primes.

Links

Table of n, a(n) for n=1..5.

R. E. Dressler, A stronger Bertrand's postulate with an application to partitions, Proc. Amer. Math. Soc., 33 (1972), 226-228.

R. E. Dressler, Addendum to "A stronger Bertrand’s postulate with an application to partitions", Proc. Am. Math. Soc., 38 (1973), 667.

Crossrefs

Cf. A121571, A231407.

Sequence in context: A083146 A306091 A074108 * A361973 A021409 A283501

Adjacent sequences: A231405 A231406 A231407 * A231409 A231410 A231411

Keyword

fini,full,nonn

Author

Jonathan Sondow, Nov 24 2013

Status

approved