A031981 a(1) = 1, a(2) = 2, a(n) = smallest number not the sum of cubes of >= 1 distinct earlier terms.

1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 66, 67, 68, 69, 70, 71, 74, 75, 76, 77

Offset

1,2

References

Mihaly Bencze [Beneze], Smarandache recurrence type sequences, Bulletin of pure and applied sciences, Vol. 16E, No. 2, 1997, pp. 231-236.

H. Ibstedt, Smarandache Continued Fractions, Smarandache Notions Journal, Vol. 10, No. 1-2-3, 1999, 39-49.

F. Smarandache, Properties of numbers, ASU Special Collections, 1973.

Links

Table of n, a(n) for n=1..67.

F. Smarandache, Sequences of Numbers Involved in Unsolved Problems.

Eric Weisstein's World of Mathematics, Smarandache Sequences

Crossrefs

Essentially the same as A001476. See also A031980.

Sequence in context: A102455 A073678 A210947 * A279486 A001476 A336063

Adjacent sequences: A031978 A031979 A031980 * A031982 A031983 A031984

Keyword

nonn

Author

J. Castillo (arp(AT)cia-g.com) [Broken email address?]

Extensions

More terms from Sean A. Irvine, May 04 2020

Status

approved