a(n) = (1/2)*s(n), where s(n) is the n-th even number in A026250. Also a(n) = position of n in A026253.
A026253
a(n) = (1/2)*s(n), where s(n) is the n-th even number in A026250. Also a(n) = position of n in A026253.
Terms
- a(0) =3a(1) =5a(2) =1a(3) =10a(4) =2a(5) =15a(6) =17a(7) =20a(8) =22a(9) =4a(10) =27a(11) =29a(12) =32a(13) =34a(14) =6a(15) =39a(16) =7a(17) =44a(18) =46a(19) =8a(20) =51a(21) =9a(22) =56a(23) =58a(24) =61a(25) =63a(26) =11a(27) =68a(28) =12a(29) =73
External references
- oeis: A026253