a(n) = (d(n)-r(n))/2, where d = A026043 and r is the periodic sequence with fundamental period (1,1,0,0).

A026044

a(n) = (d(n)-r(n))/2, where d = A026043 and r is the periodic sequence with fundamental period (1,1,0,0).

Terms

    a(0) =22a(1) =33a(2) =49a(3) =70a(4) =97a(5) =132a(6) =176a(7) =229a(8) =292a(9) =367a(10) =455a(11) =556a(12) =671a(13) =802a(14) =950a(15) =1115a(16) =1298a(17) =1501a(18) =1725a(19) =1970a(20) =2237a(21) =2528a(22) =2844a(23) =3185a(24) =3552a(25) =3947a(26) =4371a(27) =4824a(28) =5307a(29) =5822

External references