1,2

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

Cf. A001700.

For a term to be here, it needs to be at least in the intersection of A048645, A051382, A050607, A050608 and an infinitude of similar sequences. The corresponding location in next-to-center column should be nonzero in A034931 (Pascal's triangle mod 4) and all similarly constructed fractal triangles (Pascal's triangle mod p^2).

Sequence in context: A014851 A128399 A051404 this_sequence A132600 A163627 A018431

Adjacent sequences: A046094 A046095 A046096 this_sequence A046098 A046099 A046100

nonn,fini

Eric Weisstein (eric(AT)weisstein.com)

James A. Sellers (sellersj(AT)math.psu.edu) reports no further terms below 1500.

Michael Somos checked to 99999. Probably there are no more terms.