A218488 Positive numbers differing from next 4 greater squares by squares.
60480, 2851200, 13366080, 42134400, 93139200, 588107520, 684391680, 1210809600, 10534043520, 16817673600, 38694427200, 52143537600, 54939044160, 59580892800, 89555155200, 104432328000, 136734998400, 356676566400, 663924381120, 1100581171200, 1200474475200
Offset: 1
Keywords
Examples
60480 = 246^2 - 6^2 = 247^2 - 23^2 = 248^2 - 32^2 = 249^2 - 39^2.
Links
- Donovan Johnson, Table of n, a(n) for n = 1..84 (terms < 10^18)
- E. J. Barbeau, Numbers differing from consecutive squares by squares, Canad. Math. Bull. 28(1985), pp. 337-342.
Extensions
a(9)-a(21) from Donovan Johnson, Oct 31 2012