s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = A023532, t = (odd natural numbers).

A025072

s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n-k+1), where k = [ n/2 ], s = A023532, t = (odd natural numbers).

Terms

    a(0) =3a(1) =5a(2) =7a(3) =9a(4) =18a(5) =22a(6) =35a(7) =41a(8) =47a(9) =53a(10) =72a(11) =80a(12) =103a(13) =113a(14) =140a(15) =152a(16) =164a(17) =176a(18) =209a(19) =223a(20) =260a(21) =276a(22) =317a(23) =335a(24) =380a(25) =400a(26) =420a(27) =440a(28) =491a(29) =513

External references