1,2

a(n)/a(n-1) tends to e+1; e.g., a(14)/a(13) = 3.71889168...; whereas A090039(n)/A090039(n-1) tends to e.

Binomial transform of A090039.

a(4) = 42 = 1*1 + 3*2 + 3*6 + 1*17; where 1, 2, 6, 17...are the first 4 terms of A090039.

Cf. A090039.

Sequence in context: A096147 A099489 A077830 this_sequence A059716 A122368 A032443

Adjacent sequences: A106457 A106458 A106459 this_sequence A106461 A106462 A106463

nonn

Gary W. Adamson (qntmpkt(AT)yahoo.com), May 02 2005