Irregular triangle T(n,k) = 2^(floor(n/3)-k) * nextprime(2^(n-2*(floor(n/3)-k))), with k = 0..floor(n/3)-1.

A384875

Irregular triangle T(n,k) = 2^(floor(n/3)-k) * nextprime(2^(n-2*(floor(n/3)-k))), with k = 0..floor(n/3)-1.

Terms

    a(0) =6a(1) =10a(2) =22a(3) =20a(4) =34a(5) =44a(6) =74a(7) =68a(8) =134a(9) =88a(10) =148a(11) =262a(12) =136a(13) =268a(14) =514a(15) =296a(16) =524a(17) =1042a(18) =272a(19) =536a(20) =1028a(21) =2062a(22) =592a(23) =1048a(24) =2084a(25) =4106a(26) =1072a(27) =2056a(28) =4124a(29) =8198

External references