

A037450


Numbers which are one less than a perfect square that cannot otherwise be written as a power.


3



3, 8, 24, 35, 48, 99, 120, 143, 168, 195, 224, 288, 323, 360, 399, 440, 483, 528, 575, 675, 783, 840, 899, 960, 1088, 1155, 1224, 1368, 1443, 1520, 1599, 1680, 1763, 1848, 1935, 2024, 2115, 2208, 2303, 2499, 2600, 2703, 2808, 2915, 3024, 3135
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OFFSET

0,1


REFERENCES

W. Dunham, Euler: The Master of Us All, The Mathematical Association of America, Washington D.C., 1999, p. 66.
L. Euler, "Variae observationes circa series infinitas," Opera Omnia, Ser. 1, Vol. 14, pp. 216244.


LINKS

Table of n, a(n) for n=0..45.
L. Euler, Variae observationes circa series infinitas


PROG

(PARI) lista(m) = {for (i=2, m, sq = i^2; if (ispower(sq) == 2, print1(sq1, ", ")); ); } \\ Michel Marcus, Apr 17 2013


CROSSREFS

Cf. A062834.
Sequence in context: A309114 A065083 A280190 * A081990 A084920 A323278
Adjacent sequences: A037447 A037448 A037449 * A037451 A037452 A037453


KEYWORD

nonn


AUTHOR

Jason Earls, Jul 21 2001


EXTENSIONS

More terms from Dean Hickerson, Jul 24, 2001


STATUS

approved



