Let Oc(n) = A005900(n) = n-th octahedral number. Consider all integer triples (i,j,k), j >= k > 0, with Oc(i) = Oc(j)+Oc(k), ordered by increasing i; sequence gives i values.

A053676

Let Oc(n) = A005900(n) = n-th octahedral number. Consider all integer triples (i,j,k), j >= k > 0, with Oc(i) = Oc(j)+Oc(k), ordered by increasing i; sequence gives i values.

Terms

    a(0) =7a(1) =41a(2) =465a(3) =2732a(4) =3005a(5) =20648a(6) =48125a(7) =94396a(8) =129299a(9) =282931a(10) =789281a(11) =835050a(12) =1241217a(13) =1292143a(14) =1521647a(15) =1603655a(16) =2756953a(17) =4847702a(18) =5128447a(19) =6242598

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