Number of ways of writing n as the sum of n+1 triangular numbers, divided by n+1.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =11a(6) =25a(7) =64a(8) =169a(9) =442a(10) =1172a(11) =3180a(12) =8730a(13) =24116a(14) =67159a(15) =188568a(16) =532741a(17) =1512695a(18) =4315996a(19) =12369324a(20) =35587923a(21) =102747636a(22) =297601382a(23) =864525312a(24) =2518185362a(25) =7353088206a(26) =21520084301a(27) =63115752910a(28) =185474840912a(29) =546042990300