A278033 Instanton numbers of the (4, 1)-threefold.

6, 15, 30, 114, 522, 2529, 12636, 69744, 405168, 2449773, 15261150, 97808574, 641284110, 4287838548, 29153498904, 201163103922, 1406107987374, 9941935540692, 71017384630734, 511976000663130, 3721663648494978, 27257992426100979, 201015705767041110, 1491738880927589808, 11134231701698352462, 83548054037756075397

Offset

1,1

Links

Table of n, a(n) for n=1..26.

V. Braun, P. Candelas, X. de la Ossa, Two One-Parameter Special Geometries, arXiv preprint arXiv:1512.08367 [hep-th], 2015.

Crossrefs

Sequence in context: A232169 A231814 A056497 * A092411 A272744 A273536

Adjacent sequences: A278030 A278031 A278032 * A278034 A278035 A278036

Keyword

nonn

Author

N. J. A. Sloane, Nov 14 2016

Status

approved