A285955 - cp's OEIS frontend

A285955 Numbers a(n) = T(b(n))*sqrt(T(b(n))+1), where T(b(n)) is the triangular number of b(n)= A000217(b(n)) and b(n)=A006451(n). Also a(n) = y solutions of the Bachet Mordell equation y^2=x^3+K, where x= T(b(n)) = A006454(n) and K = (T(b(n)))^2= A285985(n).

n	a(n)
0	0
1	6
2	60
3	1320
4	12144
5	262080
6	2405970
7	51894744
8	476378760
9	10274921850
10	94320640056
11	2034382775040
12	18675010652760
13	402797515372356
14	3697557790357470
15	79751873665825680
16	732097767490332144
17	15790468188346521390
18	144951660405354891060
19	3126432949419110989944

[0, 6, 60, 1320, 12144, 262080, 2405970, 51894744, 476378760, 10274921850, 94320640056, 2034382775040, 18675010652760, 402797515372356, 3697557790357470, 79751873665825680, 732097767490332144, 15790468188346521390, 144951660405354891060, 3126432949419110989944]

cp's OEIS Frontend

A285955 Numbers a(n) = T(b(n))*sqrt(T(b(n))+1), where T(b(n)) is the triangular number of b(n)= A000217(b(n)) and b(n)=A006451(n). Also a(n) = y solutions of the Bachet Mordell equation y^2=x^3+K, where x= T(b(n)) = A006454(n) and K = (T(b(n)))^2= A285985(n).

Table of values

List of values