The number of primes of the form i^2 + j^4 (A028916) <= 2^n, counted with multiplicity.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =4a(5) =6a(6) =9a(7) =13a(8) =21a(9) =34a(10) =50a(11) =77a(12) =121a(13) =191a(14) =292a(15) =458a(16) =727a(17) =1164a(18) =1840a(19) =2904a(20) =4650a(21) =7429a(22) =11869a(23) =19087a(24) =30760a(25) =49474a(26) =79971a(27) =129226a(28) =209823a(29) =340347