a(n) is the least prime such that the subsets of { a(1), ..., a(n) } sum up to 2^n different values.
A138000
a(n) is the least prime such that the subsets of { a(1), ..., a(n) } sum up to 2^n different values.
Terms
- a(0) =2a(1) =3a(2) =7a(3) =11a(4) =29a(5) =53a(6) =107a(7) =211a(8) =431a(9) =853a(10) =1709a(11) =3433a(12) =6857a(13) =13709a(14) =27427a(15) =54851a(16) =109717a(17) =219409a(18) =438827a(19) =877651a(20) =1755319a(21) =3510623a(22) =7021249a(23) =14042491a(24) =28084997a(25) =56169977a(26) =112339957a(27) =224679913a(28) =449359829a(29) =898719707
External references
- oeis: A138000