A093660 - OEIS

This site is supported by donations to The OEIS Foundation.

A093660

Row sums of lower triangular matrix A093658.

1, 2, 2, 5, 2, 5, 5, 16, 2, 5, 5, 16, 5, 16, 16, 65, 2, 5, 5, 16, 5, 16, 16, 65, 5, 16, 16, 65, 16, 65, 65, 326, 2, 5, 5, 16, 5, 16, 16, 65, 5, 16, 16, 65, 16, 65, 65, 326, 5, 16, 16, 65, 16, 65, 65, 326, 16, 65, 65, 326, 65, 326, 326, 1957 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`Records form A000522 (total number of arrangements of set of n elements). Partial sums form A093661, where A093661(2^n) = A010842(n) (incomplete Gamma Function at 2).`
	FORMULA	`a(2^n) = A000522(n) for n>=0. a(2^n+2^m) = a(2^(m+1)) for n>m>=0.`
	CROSSREFS	`Cf. A000522, A010842, A093658, A093661.` `Sequence in context: A171868 A101910 A162784 * A093663 A011143 A185291` `Adjacent sequences: A093657 A093658 A093659 * A093661 A093662 A093663`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Apr 08 2004`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 06:07 EST 2012. Contains 205860 sequences.